Home / 129,766.64-179,072.52-73,183.28

Finding the Fourth Proportional to 129,766.64, 179,072.52 and 73,183.28

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Solution

The fourth proportional to 129,766.64, 179,072.52 and 73,183.28 is: 100,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,766.64 : 179,072.52 = 73,183.28 : x
  2. Step 2: Convert to fraction form
    129,766.64/179,072.52 = 73,183.28/x
  3. Step 3: Cross multiply
    129,766.64x = 179,072.52 × 73,183.28
  4. Step 4: Simplify right side
    129,766.64x = 13,105,114,371.47
  5. Step 5: Solve for x
    x = 13,105,114,371.47/129,766.64
  6. Step 6: Final answer
    x = 100,989.86

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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.