Home / 131,132.70-196,727.97-77,873.10

Finding the Fourth Proportional to 131,132.70, 196,727.97 and 77,873.10

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Solution

The fourth proportional to 131,132.70, 196,727.97 and 77,873.10 is: 116,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,132.70 : 196,727.97 = 77,873.10 : x
  2. Step 2: Convert to fraction form
    131,132.70/196,727.97 = 77,873.10/x
  3. Step 3: Cross multiply
    131,132.70x = 196,727.97 × 77,873.10
  4. Step 4: Simplify right side
    131,132.70x = 15,319,816,880.61
  5. Step 5: Solve for x
    x = 15,319,816,880.61/131,132.70
  6. Step 6: Final answer
    x = 116,826.82

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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.