Home / 138,002.20-207,003.30-54,896.20

Finding the Fourth Proportional to 138,002.20, 207,003.30 and 54,896.20

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Solution

The fourth proportional to 138,002.20, 207,003.30 and 54,896.20 is: 82,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,002.20 : 207,003.30 = 54,896.20 : x
  2. Step 2: Convert to fraction form
    138,002.20/207,003.30 = 54,896.20/x
  3. Step 3: Cross multiply
    138,002.20x = 207,003.30 × 54,896.20
  4. Step 4: Simplify right side
    138,002.20x = 11,363,694,557.46
  5. Step 5: Solve for x
    x = 11,363,694,557.46/138,002.20
  6. Step 6: Final answer
    x = 82,344.30

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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.