Home / 141,245.20-194,919.78-76,715.70

Finding the Fourth Proportional to 141,245.20, 194,919.78 and 76,715.70

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Solution

The fourth proportional to 141,245.20, 194,919.78 and 76,715.70 is: 105,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,245.20 : 194,919.78 = 76,715.70 : x
  2. Step 2: Convert to fraction form
    141,245.20/194,919.78 = 76,715.70/x
  3. Step 3: Cross multiply
    141,245.20x = 194,919.78 × 76,715.70
  4. Step 4: Simplify right side
    141,245.20x = 14,953,407,366.55
  5. Step 5: Solve for x
    x = 14,953,407,366.55/141,245.20
  6. Step 6: Final answer
    x = 105,868.43

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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.