Home / 126,489.29-174,558.83-69,131.80

Finding the Fourth Proportional to 126,489.29, 174,558.83 and 69,131.80

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Solution

The fourth proportional to 126,489.29, 174,558.83 and 69,131.80 is: 95,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,489.29 : 174,558.83 = 69,131.80 : x
  2. Step 2: Convert to fraction form
    126,489.29/174,558.83 = 69,131.80/x
  3. Step 3: Cross multiply
    126,489.29x = 174,558.83 × 69,131.80
  4. Step 4: Simplify right side
    126,489.29x = 12,067,566,123.79
  5. Step 5: Solve for x
    x = 12,067,566,123.79/126,489.29
  6. Step 6: Final answer
    x = 95,403.86

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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.