Home / 129,839.28-194,844-45,597.24

Finding the Fourth Proportional to 129,839.28, 194,844 and 45,597.24

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Solution

The fourth proportional to 129,839.28, 194,844 and 45,597.24 is: 68,425.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,839.28 : 194,844 = 45,597.24 : x
  2. Step 2: Convert to fraction form
    129,839.28/194,844 = 45,597.24/x
  3. Step 3: Cross multiply
    129,839.28x = 194,844 × 45,597.24
  4. Step 4: Simplify right side
    129,839.28x = 8,884,348,630.56
  5. Step 5: Solve for x
    x = 8,884,348,630.56/129,839.28
  6. Step 6: Final answer
    x = 68,425.74

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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.