Home / 131,143.89-196,711.17-42,395.07

Finding the Fourth Proportional to 131,143.89, 196,711.17 and 42,395.07

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Solution

The fourth proportional to 131,143.89, 196,711.17 and 42,395.07 is: 63,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,143.89 : 196,711.17 = 42,395.07 : x
  2. Step 2: Convert to fraction form
    131,143.89/196,711.17 = 42,395.07/x
  3. Step 3: Cross multiply
    131,143.89x = 196,711.17 × 42,395.07
  4. Step 4: Simplify right side
    131,143.89x = 8,339,583,821.93
  5. Step 5: Solve for x
    x = 8,339,583,821.93/131,143.89
  6. Step 6: Final answer
    x = 63,591.10

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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.