How many bottles should me 4.5 month be having. Justhow much should 4 months old eat?

[rubysoho120]

How many bottles should me 4.5 month be having. Just upped her bottles to 5 oz. So she has one 4 oz breastmilk bottle and five 5 oz formula bottles. And she has them every 4 hours. She never did hunger cues and lost tons of weight so we had to put her on a routine. So is that a normal/good amount? She weighted 13.5 pounds at her 4 month check up. Was 7.7 at birth. She seems pretty ok with this much.