Home / 129,707.20-194,452.80-54,884.80

Finding the Fourth Proportional to 129,707.20, 194,452.80 and 54,884.80

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Solution

The fourth proportional to 129,707.20, 194,452.80 and 54,884.80 is: 82,281.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,707.20 : 194,452.80 = 54,884.80 : x
  2. Step 2: Convert to fraction form
    129,707.20/194,452.80 = 54,884.80/x
  3. Step 3: Cross multiply
    129,707.20x = 194,452.80 × 54,884.80
  4. Step 4: Simplify right side
    129,707.20x = 10,672,503,037.44
  5. Step 5: Solve for x
    x = 10,672,503,037.44/129,707.20
  6. Step 6: Final answer
    x = 82,281.50

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1.5x scale

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.