Home / 131,849.79-197,780.15-38,355.54

Finding the Fourth Proportional to 131,849.79, 197,780.15 and 38,355.54

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Solution

The fourth proportional to 131,849.79, 197,780.15 and 38,355.54 is: 57,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,849.79 : 197,780.15 = 38,355.54 : x
  2. Step 2: Convert to fraction form
    131,849.79/197,780.15 = 38,355.54/x
  3. Step 3: Cross multiply
    131,849.79x = 197,780.15 × 38,355.54
  4. Step 4: Simplify right side
    131,849.79x = 7,585,963,273.85
  5. Step 5: Solve for x
    x = 7,585,963,273.85/131,849.79
  6. Step 6: Final answer
    x = 57,534.89

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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.