Final answer:
By using the given ratio of 4:3 and the total amount of $140, we've calculated that each part is worth $20 and concluded that Eric's account balance is $80.
Step-by-step explanation:
To find the balance of Eric's account, we first need to understand the ratio given, which is 4:3. This means for every 4 parts Eric has, Shiloh has 3 parts. Together, they make up 7 parts since 4+3=7. With the total amount of $140, each part would be worth $140 ÷ 7 = $20.
Since Eric has 4 parts, we multiply 4 by the value of each part ($20) to find out his total savings. So, Eric's savings account balance is 4 × $20 = $80.