Home / 129,949.72-179,329.20-73,363.48

Finding the Fourth Proportional to 129,949.72, 179,329.20 and 73,363.48

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Solution

The fourth proportional to 129,949.72, 179,329.20 and 73,363.48 is: 101,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,949.72 : 179,329.20 = 73,363.48 : x
  2. Step 2: Convert to fraction form
    129,949.72/179,329.20 = 73,363.48/x
  3. Step 3: Cross multiply
    129,949.72x = 179,329.20 × 73,363.48
  4. Step 4: Simplify right side
    129,949.72x = 13,156,214,177.62
  5. Step 5: Solve for x
    x = 13,156,214,177.62/129,949.72
  6. Step 6: Final answer
    x = 101,240.80

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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.