Home / 129,747.20-179,047.07-76,067.97

Finding the Fourth Proportional to 129,747.20, 179,047.07 and 76,067.97

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Solution

The fourth proportional to 129,747.20, 179,047.07 and 76,067.97 is: 104,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,747.20 : 179,047.07 = 76,067.97 : x
  2. Step 2: Convert to fraction form
    129,747.20/179,047.07 = 76,067.97/x
  3. Step 3: Cross multiply
    129,747.20x = 179,047.07 × 76,067.97
  4. Step 4: Simplify right side
    129,747.20x = 13,619,746,254.11
  5. Step 5: Solve for x
    x = 13,619,746,254.11/129,747.20
  6. Step 6: Final answer
    x = 104,971.41

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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.