Finding the Fourth Proportional to 129,520.62, 194,308.56 and 73,387.62
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Solution
The fourth proportional to 129,520.62, 194,308.56 and 73,387.62 is: 110,097.09
Step by Step Solution
- Step 1: Write the proportion equation
129,520.62 : 194,308.56 = 73,387.62 : x - Step 2: Convert to fraction form
129,520.62/194,308.56 = 73,387.62/x - Step 3: Cross multiply
129,520.62x = 194,308.56 × 73,387.62 - Step 4: Simplify right side
129,520.62x = 14,259,842,764.03 - Step 5: Solve for x
x = 14,259,842,764.03/129,520.62 - Step 6: Final answer
x = 110,097.09
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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.