Home / 135,902.46-187,479.99-88,170.78

Finding the Fourth Proportional to 135,902.46, 187,479.99 and 88,170.78

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Solution

The fourth proportional to 135,902.46, 187,479.99 and 88,170.78 is: 121,633.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,902.46 : 187,479.99 = 88,170.78 : x
  2. Step 2: Convert to fraction form
    135,902.46/187,479.99 = 88,170.78/x
  3. Step 3: Cross multiply
    135,902.46x = 187,479.99 × 88,170.78
  4. Step 4: Simplify right side
    135,902.46x = 16,530,256,952.69
  5. Step 5: Solve for x
    x = 16,530,256,952.69/135,902.46
  6. Step 6: Final answer
    x = 121,633.24

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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.