Home / 138,748.01-208,098.53-38,885.22

Finding the Fourth Proportional to 138,748.01, 208,098.53 and 38,885.22

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Solution

The fourth proportional to 138,748.01, 208,098.53 and 38,885.22 is: 58,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,748.01 : 208,098.53 = 38,885.22 : x
  2. Step 2: Convert to fraction form
    138,748.01/208,098.53 = 38,885.22/x
  3. Step 3: Cross multiply
    138,748.01x = 208,098.53 × 38,885.22
  4. Step 4: Simplify right side
    138,748.01x = 8,091,957,120.73
  5. Step 5: Solve for x
    x = 8,091,957,120.73/138,748.01
  6. Step 6: Final answer
    x = 58,321.25

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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.