Home / 129,981.13-179,377.22-73,392.91

Finding the Fourth Proportional to 129,981.13, 179,377.22 and 73,392.91

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Solution

The fourth proportional to 129,981.13, 179,377.22 and 73,392.91 is: 101,284.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981.13 : 179,377.22 = 73,392.91 : x
  2. Step 2: Convert to fraction form
    129,981.13/179,377.22 = 73,392.91/x
  3. Step 3: Cross multiply
    129,981.13x = 179,377.22 × 73,392.91
  4. Step 4: Simplify right side
    129,981.13x = 13,165,016,163.51
  5. Step 5: Solve for x
    x = 13,165,016,163.51/129,981.13
  6. Step 6: Final answer
    x = 101,284.06

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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.