Home / 126,110.64-188,832.20-76,123.92

Finding the Fourth Proportional to 126,110.64, 188,832.20 and 76,123.92

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Solution

The fourth proportional to 126,110.64, 188,832.20 and 76,123.92 is: 113,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,110.64 : 188,832.20 = 76,123.92 : x
  2. Step 2: Convert to fraction form
    126,110.64/188,832.20 = 76,123.92/x
  3. Step 3: Cross multiply
    126,110.64x = 188,832.20 × 76,123.92
  4. Step 4: Simplify right side
    126,110.64x = 14,374,647,286.22
  5. Step 5: Solve for x
    x = 14,374,647,286.22/126,110.64
  6. Step 6: Final answer
    x = 113,984.41

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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.