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Finding the Fourth Proportional to 108,540, 149,772.96 and 63,227.52

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Solution

The fourth proportional to 108,540, 149,772.96 and 63,227.52 is: 87,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,540 : 149,772.96 = 63,227.52 : x
  2. Step 2: Convert to fraction form
    108,540/149,772.96 = 63,227.52/x
  3. Step 3: Cross multiply
    108,540x = 149,772.96 × 63,227.52
  4. Step 4: Simplify right side
    108,540x = 9,469,772,823.86
  5. Step 5: Solve for x
    x = 9,469,772,823.86/108,540
  6. Step 6: Final answer
    x = 87,246.85

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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.