Home / 87,191.44-130,609.67-79,925.74

Finding the Fourth Proportional to 87,191.44, 130,609.67 and 79,925.74

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Solution

The fourth proportional to 87,191.44, 130,609.67 and 79,925.74 is: 119,725.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191.44 : 130,609.67 = 79,925.74 : x
  2. Step 2: Convert to fraction form
    87,191.44/130,609.67 = 79,925.74/x
  3. Step 3: Cross multiply
    87,191.44x = 130,609.67 × 79,925.74
  4. Step 4: Simplify right side
    87,191.44x = 10,439,073,799.75
  5. Step 5: Solve for x
    x = 10,439,073,799.75/87,191.44
  6. Step 6: Final answer
    x = 119,725.91

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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.