Home / 138,871.08-208,306.60-39,027.24

Finding the Fourth Proportional to 138,871.08, 208,306.60 and 39,027.24

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Solution

The fourth proportional to 138,871.08, 208,306.60 and 39,027.24 is: 58,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,871.08 : 208,306.60 = 39,027.24 : x
  2. Step 2: Convert to fraction form
    138,871.08/208,306.60 = 39,027.24/x
  3. Step 3: Cross multiply
    138,871.08x = 208,306.60 × 39,027.24
  4. Step 4: Simplify right side
    138,871.08x = 8,129,631,671.78
  5. Step 5: Solve for x
    x = 8,129,631,671.78/138,871.08
  6. Step 6: Final answer
    x = 58,540.85

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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.