Home / 135,769.38-187,557.17-108,510.55

Finding the Fourth Proportional to 135,769.38, 187,557.17 and 108,510.55

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Solution

The fourth proportional to 135,769.38, 187,557.17 and 108,510.55 is: 149,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,769.38 : 187,557.17 = 108,510.55 : x
  2. Step 2: Convert to fraction form
    135,769.38/187,557.17 = 108,510.55/x
  3. Step 3: Cross multiply
    135,769.38x = 187,557.17 × 108,510.55
  4. Step 4: Simplify right side
    135,769.38x = 20,351,931,673.14
  5. Step 5: Solve for x
    x = 20,351,931,673.14/135,769.38
  6. Step 6: Final answer
    x = 149,900.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.