Finding the Fourth Proportional to 132,221.06, 182,446.70 and 77,775.70
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Solution
The fourth proportional to 132,221.06, 182,446.70 and 77,775.70 is: 107,319.66
Step by Step Solution
- Step 1: Write the proportion equation
132,221.06 : 182,446.70 = 77,775.70 : x - Step 2: Convert to fraction form
132,221.06/182,446.70 = 77,775.70/x - Step 3: Cross multiply
132,221.06x = 182,446.70 × 77,775.70 - Step 4: Simplify right side
132,221.06x = 14,189,919,805.19 - Step 5: Solve for x
x = 14,189,919,805.19/132,221.06 - Step 6: Final answer
x = 107,319.66
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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.