Home / 129,757.12-179,067.60-73,157.56

Finding the Fourth Proportional to 129,757.12, 179,067.60 and 73,157.56

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Solution

The fourth proportional to 129,757.12, 179,067.60 and 73,157.56 is: 100,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,757.12 : 179,067.60 = 73,157.56 : x
  2. Step 2: Convert to fraction form
    129,757.12/179,067.60 = 73,157.56/x
  3. Step 3: Cross multiply
    129,757.12x = 179,067.60 × 73,157.56
  4. Step 4: Simplify right side
    129,757.12x = 13,100,148,691.06
  5. Step 5: Solve for x
    x = 13,100,148,691.06/129,757.12
  6. Step 6: Final answer
    x = 100,959.00

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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.