Home / 129,682.70-194,305.35-107,375.30

Finding the Fourth Proportional to 129,682.70, 194,305.35 and 107,375.30

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Solution

The fourth proportional to 129,682.70, 194,305.35 and 107,375.30 is: 160,881.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,682.70 : 194,305.35 = 107,375.30 : x
  2. Step 2: Convert to fraction form
    129,682.70/194,305.35 = 107,375.30/x
  3. Step 3: Cross multiply
    129,682.70x = 194,305.35 × 107,375.30
  4. Step 4: Simplify right side
    129,682.70x = 20,863,595,247.86
  5. Step 5: Solve for x
    x = 20,863,595,247.86/129,682.70
  6. Step 6: Final answer
    x = 160,881.87

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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.