Home / 129,982.13-179,378.60-73,393.91

Finding the Fourth Proportional to 129,982.13, 179,378.60 and 73,393.91

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Solution

The fourth proportional to 129,982.13, 179,378.60 and 73,393.91 is: 101,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,982.13 : 179,378.60 = 73,393.91 : x
  2. Step 2: Convert to fraction form
    129,982.13/179,378.60 = 73,393.91/x
  3. Step 3: Cross multiply
    129,982.13x = 179,378.60 × 73,393.91
  4. Step 4: Simplify right side
    129,982.13x = 13,165,296,824.33
  5. Step 5: Solve for x
    x = 13,165,296,824.33/129,982.13
  6. Step 6: Final answer
    x = 101,285.44

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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.