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Finding the Fourth Proportional to 127,540.82, 176,001.04 and 69,397.79

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Solution

The fourth proportional to 127,540.82, 176,001.04 and 69,397.79 is: 95,766.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,540.82 : 176,001.04 = 69,397.79 : x
  2. Step 2: Convert to fraction form
    127,540.82/176,001.04 = 69,397.79/x
  3. Step 3: Cross multiply
    127,540.82x = 176,001.04 × 69,397.79
  4. Step 4: Simplify right side
    127,540.82x = 12,214,083,115.33
  5. Step 5: Solve for x
    x = 12,214,083,115.33/127,540.82
  6. Step 6: Final answer
    x = 95,766.07

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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.