Home / 135,575.38-187,105.23-75,164.97

Finding the Fourth Proportional to 135,575.38, 187,105.23 and 75,164.97

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Solution

The fourth proportional to 135,575.38, 187,105.23 and 75,164.97 is: 103,733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,575.38 : 187,105.23 = 75,164.97 : x
  2. Step 2: Convert to fraction form
    135,575.38/187,105.23 = 75,164.97/x
  3. Step 3: Cross multiply
    135,575.38x = 187,105.23 × 75,164.97
  4. Step 4: Simplify right side
    135,575.38x = 14,063,758,999.79
  5. Step 5: Solve for x
    x = 14,063,758,999.79/135,575.38
  6. Step 6: Final answer
    x = 103,733.87

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1.5x scale

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.