The victims of Kenneth Light came forward after a West Midlands Police appeal.
It came after he was jailed in September 2019 for indecently assaulting two young girls between 1998 and 2006, who were aged between five and 10 at the time.
After he was jailed for more than eight years last year for those offences, West Midlands Police feared there could be more victims and launched an appeal.
It prompted three women to contact officers. Two women said he indecently assaulted them when they were children and the third accused Light of raping her when she was in her 20s.
Light admitted the assaults but denied the rape. However on the first day of his trial he changed his plea to guilty.
As a result, he was handed another prison sentence, which totalled eight years and eight months. This was ordered to be run concurrently with the sentence he received in 2019.
Light, of Chelmsley Road in Chelmsley Wood, will also remain on the sex offenders register for life.
Detective Constable Karen Jones, from the force’s Public Protection Unit, said: "We do not underestimate the impact that abuse from many years ago can still have on people living with that memory.
"This conviction shows that we are determined to bring perpetrators to justice, no matter how many years have passed.
"We have specialist officers who are trained to deal expertly and sensitively with such cases and I would urge anyone who suffered historical abuse, and may still be suffering now, to contact us.
"We work with a number of other organisations who can offer support throughout the judicial process."