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Finding the Fourth Proportional to 131,701.20, 197,260.20 and 108,373.20

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Solution

The fourth proportional to 131,701.20, 197,260.20 and 108,373.20 is: 162,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,701.20 : 197,260.20 = 108,373.20 : x
  2. Step 2: Convert to fraction form
    131,701.20/197,260.20 = 108,373.20/x
  3. Step 3: Cross multiply
    131,701.20x = 197,260.20 × 108,373.20
  4. Step 4: Simplify right side
    131,701.20x = 21,377,719,106.64
  5. Step 5: Solve for x
    x = 21,377,719,106.64/131,701.20
  6. Step 6: Final answer
    x = 162,319.85

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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.