PlayStation 3 won't reach 100 million.
It also probably won't reach 90 million.
At the moment PS3 sales are at 82.79 million
PlayStation 3 sales right now are at decline.
Everyone is buying the PlayStation 4.
Do you really think that a system with sales at major decline can sale
20 million copies more and pass 100 million?
I don't think so.
90 million is also seems like a far target for PS3 and Xbox 360.
I think both will eventually sale about 85 million copies.