Finding the Fourth Proportional to 117,034.80, 161,508.06 and 63,319.79
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Solution
The fourth proportional to 117,034.80, 161,508.06 and 63,319.79 is: 87,381.32
Step by Step Solution
- Step 1: Write the proportion equation
117,034.80 : 161,508.06 = 63,319.79 : x - Step 2: Convert to fraction form
117,034.80/161,508.06 = 63,319.79/x - Step 3: Cross multiply
117,034.80x = 161,508.06 × 63,319.79 - Step 4: Simplify right side
117,034.80x = 10,226,655,634.97 - Step 5: Solve for x
x = 10,226,655,634.97/117,034.80 - Step 6: Final answer
x = 87,381.32
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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.