Finding the Fourth Proportional to 159,486.26, 220,082.52 and 91,489.18
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Solution
The fourth proportional to 159,486.26, 220,082.52 and 91,489.18 is: 126,250.18
Step by Step Solution
- Step 1: Write the proportion equation
159,486.26 : 220,082.52 = 91,489.18 : x - Step 2: Convert to fraction form
159,486.26/220,082.52 = 91,489.18/x - Step 3: Cross multiply
159,486.26x = 220,082.52 × 91,489.18 - Step 4: Simplify right side
159,486.26x = 20,135,169,287.13 - Step 5: Solve for x
x = 20,135,169,287.13/159,486.26 - Step 6: Final answer
x = 126,250.18
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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.