Finding the Fourth Proportional to 502,106.14, 753,158.80 and 128,129.14
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Solution
The fourth proportional to 502,106.14, 753,158.80 and 128,129.14 is: 192,193.61
Step by Step Solution
- Step 1: Write the proportion equation
502,106.14 : 753,158.80 = 128,129.14 : x - Step 2: Convert to fraction form
502,106.14/753,158.80 = 128,129.14/x - Step 3: Cross multiply
502,106.14x = 753,158.80 × 128,129.14 - Step 4: Simplify right side
502,106.14x = 96,501,589,327.43 - Step 5: Solve for x
x = 96,501,589,327.43/502,106.14 - Step 6: Final answer
x = 192,193.61
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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.