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Finding the Fourth Proportional to 138,483.80, 207,774.30 and 59,622.20

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Solution

The fourth proportional to 138,483.80, 207,774.30 and 59,622.20 is: 89,454.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,483.80 : 207,774.30 = 59,622.20 : x
  2. Step 2: Convert to fraction form
    138,483.80/207,774.30 = 59,622.20/x
  3. Step 3: Cross multiply
    138,483.80x = 207,774.30 × 59,622.20
  4. Step 4: Simplify right side
    138,483.80x = 12,387,960,869.46
  5. Step 5: Solve for x
    x = 12,387,960,869.46/138,483.80
  6. Step 6: Final answer
    x = 89,454.22

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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.