Home / 138,845.31-208,224.90-50,087.29

Finding the Fourth Proportional to 138,845.31, 208,224.90 and 50,087.29

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Solution

The fourth proportional to 138,845.31, 208,224.90 and 50,087.29 is: 75,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,845.31 : 208,224.90 = 50,087.29 : x
  2. Step 2: Convert to fraction form
    138,845.31/208,224.90 = 50,087.29/x
  3. Step 3: Cross multiply
    138,845.31x = 208,224.90 × 50,087.29
  4. Step 4: Simplify right side
    138,845.31x = 10,429,420,951.52
  5. Step 5: Solve for x
    x = 10,429,420,951.52/138,845.31
  6. Step 6: Final answer
    x = 75,115.40

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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.