Finding the Fourth Proportional to 126,160.73, 189,244.52 and 31,387.09
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Solution
The fourth proportional to 126,160.73, 189,244.52 and 31,387.09 is: 47,081.48
Step by Step Solution
- Step 1: Write the proportion equation
126,160.73 : 189,244.52 = 31,387.09 : x - Step 2: Convert to fraction form
126,160.73/189,244.52 = 31,387.09/x - Step 3: Cross multiply
126,160.73x = 189,244.52 × 31,387.09 - Step 4: Simplify right side
126,160.73x = 5,939,834,151.20 - Step 5: Solve for x
x = 5,939,834,151.20/126,160.73 - Step 6: Final answer
x = 47,081.48
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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.