Home / 129,794.11-179,114.83-75,351.33

Finding the Fourth Proportional to 129,794.11, 179,114.83 and 75,351.33

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Solution

The fourth proportional to 129,794.11, 179,114.83 and 75,351.33 is: 103,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,794.11 : 179,114.83 = 75,351.33 : x
  2. Step 2: Convert to fraction form
    129,794.11/179,114.83 = 75,351.33/x
  3. Step 3: Cross multiply
    129,794.11x = 179,114.83 × 75,351.33
  4. Step 4: Simplify right side
    129,794.11x = 13,496,541,473.10
  5. Step 5: Solve for x
    x = 13,496,541,473.10/129,794.11
  6. Step 6: Final answer
    x = 103,984.23

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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.