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Finding the Fourth Proportional to 138,155.52, 207,233.28 and 55,050.24

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Solution

The fourth proportional to 138,155.52, 207,233.28 and 55,050.24 is: 82,575.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,155.52 : 207,233.28 = 55,050.24 : x
  2. Step 2: Convert to fraction form
    138,155.52/207,233.28 = 55,050.24/x
  3. Step 3: Cross multiply
    138,155.52x = 207,233.28 × 55,050.24
  4. Step 4: Simplify right side
    138,155.52x = 11,408,241,799.99
  5. Step 5: Solve for x
    x = 11,408,241,799.99/138,155.52
  6. Step 6: Final answer
    x = 82,575.36

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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.