Home / 445,039.38-667,551.78-108,082.80

Finding the Fourth Proportional to 445,039.38, 667,551.78 and 108,082.80

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Solution

The fourth proportional to 445,039.38, 667,551.78 and 108,082.80 is: 162,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,039.38 : 667,551.78 = 108,082.80 : x
  2. Step 2: Convert to fraction form
    445,039.38/667,551.78 = 108,082.80/x
  3. Step 3: Cross multiply
    445,039.38x = 667,551.78 × 108,082.80
  4. Step 4: Simplify right side
    445,039.38x = 72,150,865,527.38
  5. Step 5: Solve for x
    x = 72,150,865,527.38/445,039.38
  6. Step 6: Final answer
    x = 162,122.43

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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.