Home / 138,913.68-191,700.97-75,251.73

Finding the Fourth Proportional to 138,913.68, 191,700.97 and 75,251.73

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Solution

The fourth proportional to 138,913.68, 191,700.97 and 75,251.73 is: 103,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,913.68 : 191,700.97 = 75,251.73 : x
  2. Step 2: Convert to fraction form
    138,913.68/191,700.97 = 75,251.73/x
  3. Step 3: Cross multiply
    138,913.68x = 191,700.97 × 75,251.73
  4. Step 4: Simplify right side
    138,913.68x = 14,425,829,447.05
  5. Step 5: Solve for x
    x = 14,425,829,447.05/138,913.68
  6. Step 6: Final answer
    x = 103,847.44

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1.5x scale

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.