Home / 129,862.92-179,200.98-73,279.56

Finding the Fourth Proportional to 129,862.92, 179,200.98 and 73,279.56

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Solution

The fourth proportional to 129,862.92, 179,200.98 and 73,279.56 is: 101,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,862.92 : 179,200.98 = 73,279.56 : x
  2. Step 2: Convert to fraction form
    129,862.92/179,200.98 = 73,279.56/x
  3. Step 3: Cross multiply
    129,862.92x = 179,200.98 × 73,279.56
  4. Step 4: Simplify right side
    129,862.92x = 13,131,768,965.97
  5. Step 5: Solve for x
    x = 13,131,768,965.97/129,862.92
  6. Step 6: Final answer
    x = 101,120.23

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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.