Finding the Fourth Proportional to 125,031.09, 172,531.97 and 74,034.67
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Solution
The fourth proportional to 125,031.09, 172,531.97 and 74,034.67 is: 102,161.37
Step by Step Solution
- Step 1: Write the proportion equation
125,031.09 : 172,531.97 = 74,034.67 : x - Step 2: Convert to fraction form
125,031.09/172,531.97 = 74,034.67/x - Step 3: Cross multiply
125,031.09x = 172,531.97 × 74,034.67 - Step 4: Simplify right side
125,031.09x = 12,773,347,463.40 - Step 5: Solve for x
x = 12,773,347,463.40/125,031.09 - Step 6: Final answer
x = 102,161.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.