Finding the Fourth Proportional to 125,036.78, 187,555.23 and 54,916.70
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Solution
The fourth proportional to 125,036.78, 187,555.23 and 54,916.70 is: 82,375.08
Step by Step Solution
- Step 1: Write the proportion equation
125,036.78 : 187,555.23 = 54,916.70 : x - Step 2: Convert to fraction form
125,036.78/187,555.23 = 54,916.70/x - Step 3: Cross multiply
125,036.78x = 187,555.23 × 54,916.70 - Step 4: Simplify right side
125,036.78x = 10,299,914,299.34 - Step 5: Solve for x
x = 10,299,914,299.34/125,036.78 - Step 6: Final answer
x = 82,375.08
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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.