Home / 131,217.65-196,857.72-42,471.17

Finding the Fourth Proportional to 131,217.65, 196,857.72 and 42,471.17

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Solution

The fourth proportional to 131,217.65, 196,857.72 and 42,471.17 is: 63,716.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,217.65 : 196,857.72 = 42,471.17 : x
  2. Step 2: Convert to fraction form
    131,217.65/196,857.72 = 42,471.17/x
  3. Step 3: Cross multiply
    131,217.65x = 196,857.72 × 42,471.17
  4. Step 4: Simplify right side
    131,217.65x = 8,360,777,691.93
  5. Step 5: Solve for x
    x = 8,360,777,691.93/131,217.65
  6. Step 6: Final answer
    x = 63,716.87

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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.