Home / 138,881.11-208,278.67-50,123.38

Finding the Fourth Proportional to 138,881.11, 208,278.67 and 50,123.38

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Solution

The fourth proportional to 138,881.11, 208,278.67 and 50,123.38 is: 75,169.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,881.11 : 208,278.67 = 50,123.38 : x
  2. Step 2: Convert to fraction form
    138,881.11/208,278.67 = 50,123.38/x
  3. Step 3: Cross multiply
    138,881.11x = 208,278.67 × 50,123.38
  4. Step 4: Simplify right side
    138,881.11x = 10,439,630,922.30
  5. Step 5: Solve for x
    x = 10,439,630,922.30/138,881.11
  6. Step 6: Final answer
    x = 75,169.55

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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.