Home / 129,839.94-194,380.29-117,388.62

Finding the Fourth Proportional to 129,839.94, 194,380.29 and 117,388.62

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Solution

The fourth proportional to 129,839.94, 194,380.29 and 117,388.62 is: 175,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,839.94 : 194,380.29 = 117,388.62 : x
  2. Step 2: Convert to fraction form
    129,839.94/194,380.29 = 117,388.62/x
  3. Step 3: Cross multiply
    129,839.94x = 194,380.29 × 117,388.62
  4. Step 4: Simplify right side
    129,839.94x = 22,818,033,998.30
  5. Step 5: Solve for x
    x = 22,818,033,998.30/129,839.94
  6. Step 6: Final answer
    x = 175,739.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.