Home / 138,874.05-208,288.80-50,081.85

Finding the Fourth Proportional to 138,874.05, 208,288.80 and 50,081.85

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Solution

The fourth proportional to 138,874.05, 208,288.80 and 50,081.85 is: 75,114.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,874.05 : 208,288.80 = 50,081.85 : x
  2. Step 2: Convert to fraction form
    138,874.05/208,288.80 = 50,081.85/x
  3. Step 3: Cross multiply
    138,874.05x = 208,288.80 × 50,081.85
  4. Step 4: Simplify right side
    138,874.05x = 10,431,488,438.28
  5. Step 5: Solve for x
    x = 10,431,488,438.28/138,874.05
  6. Step 6: Final answer
    x = 75,114.74

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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.