Finding the Fourth Proportional to 123,157.60, 169,957.56 and 66,569.08
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Solution
The fourth proportional to 123,157.60, 169,957.56 and 66,569.08 is: 91,865.37
Step by Step Solution
- Step 1: Write the proportion equation
123,157.60 : 169,957.56 = 66,569.08 : x - Step 2: Convert to fraction form
123,157.60/169,957.56 = 66,569.08/x - Step 3: Cross multiply
123,157.60x = 169,957.56 × 66,569.08 - Step 4: Simplify right side
123,157.60x = 11,313,918,408.24 - Step 5: Solve for x
x = 11,313,918,408.24/123,157.60 - Step 6: Final answer
x = 91,865.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.