Home / 129,975.92-179,358.20-75,523.28

Finding the Fourth Proportional to 129,975.92, 179,358.20 and 75,523.28

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Solution

The fourth proportional to 129,975.92, 179,358.20 and 75,523.28 is: 104,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,975.92 : 179,358.20 = 75,523.28 : x
  2. Step 2: Convert to fraction form
    129,975.92/179,358.20 = 75,523.28/x
  3. Step 3: Cross multiply
    129,975.92x = 179,358.20 × 75,523.28
  4. Step 4: Simplify right side
    129,975.92x = 13,545,719,558.90
  5. Step 5: Solve for x
    x = 13,545,719,558.90/129,975.92
  6. Step 6: Final answer
    x = 104,217.15

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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.