Home / 129,195.24-178,287.88-75,488.44

Finding the Fourth Proportional to 129,195.24, 178,287.88 and 75,488.44

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Solution

The fourth proportional to 129,195.24, 178,287.88 and 75,488.44 is: 104,173.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,195.24 : 178,287.88 = 75,488.44 : x
  2. Step 2: Convert to fraction form
    129,195.24/178,287.88 = 75,488.44/x
  3. Step 3: Cross multiply
    129,195.24x = 178,287.88 × 75,488.44
  4. Step 4: Simplify right side
    129,195.24x = 13,458,673,932.11
  5. Step 5: Solve for x
    x = 13,458,673,932.11/129,195.24
  6. Step 6: Final answer
    x = 104,173.14

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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.