Finding the Fourth Proportional to 129,704.62, 193,267.47 and 115,555.92
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Solution
The fourth proportional to 129,704.62, 193,267.47 and 115,555.92 is: 172,185.09
Step by Step Solution
- Step 1: Write the proportion equation
129,704.62 : 193,267.47 = 115,555.92 : x - Step 2: Convert to fraction form
129,704.62/193,267.47 = 115,555.92/x - Step 3: Cross multiply
129,704.62x = 193,267.47 × 115,555.92 - Step 4: Simplify right side
129,704.62x = 22,333,200,663.35 - Step 5: Solve for x
x = 22,333,200,663.35/129,704.62 - Step 6: Final answer
x = 172,185.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.