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Finding the Fourth Proportional to 138,801.92, 208,217.52 and 44,045.55

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Solution

The fourth proportional to 138,801.92, 208,217.52 and 44,045.55 is: 66,072.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,801.92 : 208,217.52 = 44,045.55 : x
  2. Step 2: Convert to fraction form
    138,801.92/208,217.52 = 44,045.55/x
  3. Step 3: Cross multiply
    138,801.92x = 208,217.52 × 44,045.55
  4. Step 4: Simplify right side
    138,801.92x = 9,171,055,188.04
  5. Step 5: Solve for x
    x = 9,171,055,188.04/138,801.92
  6. Step 6: Final answer
    x = 66,072.97

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1.5x scale

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.