Finding the Fourth Proportional to 129,760.04, 194,716.92 and 54,876.08
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Solution
The fourth proportional to 129,760.04, 194,716.92 and 54,876.08 is: 82,346.62
Step by Step Solution
- Step 1: Write the proportion equation
129,760.04 : 194,716.92 = 54,876.08 : x - Step 2: Convert to fraction form
129,760.04/194,716.92 = 54,876.08/x - Step 3: Cross multiply
129,760.04x = 194,716.92 × 54,876.08 - Step 4: Simplify right side
129,760.04x = 10,685,301,279.27 - Step 5: Solve for x
x = 10,685,301,279.27/129,760.04 - Step 6: Final answer
x = 82,346.62
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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.