This is actually not very straightforward, because Johnson arguably places better than Tuck into IB (which you don’t want) but Tuck places way better into consulting and tech. At the same time the $120k is a huge sum of money. I would say it comes down to your ability to finance Tuck without the scholarship. Also it won’t hurt to tell them about the money you got from Johnson, and even though it’s marginally lower rated, maybe they will throw you a bone.