Home / 131,581.13-197,391.11-38,074.73

Finding the Fourth Proportional to 131,581.13, 197,391.11 and 38,074.73

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Solution

The fourth proportional to 131,581.13, 197,391.11 and 38,074.73 is: 57,117.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,581.13 : 197,391.11 = 38,074.73 : x
  2. Step 2: Convert to fraction form
    131,581.13/197,391.11 = 38,074.73/x
  3. Step 3: Cross multiply
    131,581.13x = 197,391.11 × 38,074.73
  4. Step 4: Simplify right side
    131,581.13x = 7,515,612,040.32
  5. Step 5: Solve for x
    x = 7,515,612,040.32/131,581.13
  6. Step 6: Final answer
    x = 57,117.71

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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.