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Finding the Fourth Proportional to 131,065.20, 196,306.20 and 107,737.20

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Solution

The fourth proportional to 131,065.20, 196,306.20 and 107,737.20 is: 161,366.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,065.20 : 196,306.20 = 107,737.20 : x
  2. Step 2: Convert to fraction form
    131,065.20/196,306.20 = 107,737.20/x
  3. Step 3: Cross multiply
    131,065.20x = 196,306.20 × 107,737.20
  4. Step 4: Simplify right side
    131,065.20x = 21,149,480,330.64
  5. Step 5: Solve for x
    x = 21,149,480,330.64/131,065.20
  6. Step 6: Final answer
    x = 161,366.10

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1.5x scale

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.