Home / 129,449.12-193,924.90-79,383.22

Finding the Fourth Proportional to 129,449.12, 193,924.90 and 79,383.22

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Solution

The fourth proportional to 129,449.12, 193,924.90 and 79,383.22 is: 118,922.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,449.12 : 193,924.90 = 79,383.22 : x
  2. Step 2: Convert to fraction form
    129,449.12/193,924.90 = 79,383.22/x
  3. Step 3: Cross multiply
    129,449.12x = 193,924.90 × 79,383.22
  4. Step 4: Simplify right side
    129,449.12x = 15,394,383,000.18
  5. Step 5: Solve for x
    x = 15,394,383,000.18/129,449.12
  6. Step 6: Final answer
    x = 118,922.27

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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.