Home / 138,863.32-208,251.84-50,105.24

Finding the Fourth Proportional to 138,863.32, 208,251.84 and 50,105.24

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Solution

The fourth proportional to 138,863.32, 208,251.84 and 50,105.24 is: 75,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,863.32 : 208,251.84 = 50,105.24 : x
  2. Step 2: Convert to fraction form
    138,863.32/208,251.84 = 50,105.24/x
  3. Step 3: Cross multiply
    138,863.32x = 208,251.84 × 50,105.24
  4. Step 4: Simplify right side
    138,863.32x = 10,434,508,423.64
  5. Step 5: Solve for x
    x = 10,434,508,423.64/138,863.32
  6. Step 6: Final answer
    x = 75,142.29

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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.