Finding the Fourth Proportional to 138,828.26, 207,964.91 and 63,845.65
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Solution
The fourth proportional to 138,828.26, 207,964.91 and 63,845.65 is: 95,640.86
Step by Step Solution
- Step 1: Write the proportion equation
138,828.26 : 207,964.91 = 63,845.65 : x - Step 2: Convert to fraction form
138,828.26/207,964.91 = 63,845.65/x - Step 3: Cross multiply
138,828.26x = 207,964.91 × 63,845.65 - Step 4: Simplify right side
138,828.26x = 13,277,654,856.14 - Step 5: Solve for x
x = 13,277,654,856.14/138,828.26 - Step 6: Final answer
x = 95,640.86
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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.