Home / 129,773.22-179,091.33-75,321.31

Finding the Fourth Proportional to 129,773.22, 179,091.33 and 75,321.31

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Solution

The fourth proportional to 129,773.22, 179,091.33 and 75,321.31 is: 103,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,773.22 : 179,091.33 = 75,321.31 : x
  2. Step 2: Convert to fraction form
    129,773.22/179,091.33 = 75,321.31/x
  3. Step 3: Cross multiply
    129,773.22x = 179,091.33 × 75,321.31
  4. Step 4: Simplify right side
    129,773.22x = 13,489,393,585.24
  5. Step 5: Solve for x
    x = 13,489,393,585.24/129,773.22
  6. Step 6: Final answer
    x = 103,945.90

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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.