Finding the Fourth Proportional to 136,157.60, 204,023.08 and 86,132.08
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Solution
The fourth proportional to 136,157.60, 204,023.08 and 86,132.08 is: 129,063.18
Step by Step Solution
- Step 1: Write the proportion equation
136,157.60 : 204,023.08 = 86,132.08 : x - Step 2: Convert to fraction form
136,157.60/204,023.08 = 86,132.08/x - Step 3: Cross multiply
136,157.60x = 204,023.08 × 86,132.08 - Step 4: Simplify right side
136,157.60x = 17,572,932,248.41 - Step 5: Solve for x
x = 17,572,932,248.41/136,157.60 - Step 6: Final answer
x = 129,063.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.