Finding the Fourth Proportional to 125,668.70, 188,516.78 and 54,542.44
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Solution
The fourth proportional to 125,668.70, 188,516.78 and 54,542.44 is: 81,819.62
Step by Step Solution
- Step 1: Write the proportion equation
125,668.70 : 188,516.78 = 54,542.44 : x - Step 2: Convert to fraction form
125,668.70/188,516.78 = 54,542.44/x - Step 3: Cross multiply
125,668.70x = 188,516.78 × 54,542.44 - Step 4: Simplify right side
125,668.70x = 10,282,165,162.14 - Step 5: Solve for x
x = 10,282,165,162.14/125,668.70 - Step 6: Final answer
x = 81,819.62
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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.