Finding the Fourth Proportional to 131,918.70, 182,036.97 and 74,562.92
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Solution
The fourth proportional to 131,918.70, 182,036.97 and 74,562.92 is: 102,890.70
Step by Step Solution
- Step 1: Write the proportion equation
131,918.70 : 182,036.97 = 74,562.92 : x - Step 2: Convert to fraction form
131,918.70/182,036.97 = 74,562.92/x - Step 3: Cross multiply
131,918.70x = 182,036.97 × 74,562.92 - Step 4: Simplify right side
131,918.70x = 13,573,207,120.97 - Step 5: Solve for x
x = 13,573,207,120.97/131,918.70 - Step 6: Final answer
x = 102,890.70
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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.