Home / 131,240.92-196,812.78-42,471.40

Finding the Fourth Proportional to 131,240.92, 196,812.78 and 42,471.40

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Solution

The fourth proportional to 131,240.92, 196,812.78 and 42,471.40 is: 63,691.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,240.92 : 196,812.78 = 42,471.40 : x
  2. Step 2: Convert to fraction form
    131,240.92/196,812.78 = 42,471.40/x
  3. Step 3: Cross multiply
    131,240.92x = 196,812.78 × 42,471.40
  4. Step 4: Simplify right side
    131,240.92x = 8,358,914,304.49
  5. Step 5: Solve for x
    x = 8,358,914,304.49/131,240.92
  6. Step 6: Final answer
    x = 63,691.37

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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.