Home / 129,904.26-179,264.25-73,320.90

Finding the Fourth Proportional to 129,904.26, 179,264.25 and 73,320.90

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Solution

The fourth proportional to 129,904.26, 179,264.25 and 73,320.90 is: 101,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,904.26 : 179,264.25 = 73,320.90 : x
  2. Step 2: Convert to fraction form
    129,904.26/179,264.25 = 73,320.90/x
  3. Step 3: Cross multiply
    129,904.26x = 179,264.25 × 73,320.90
  4. Step 4: Simplify right side
    129,904.26x = 13,143,816,147.83
  5. Step 5: Solve for x
    x = 13,143,816,147.83/129,904.26
  6. Step 6: Final answer
    x = 101,180.79

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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.