Home / 108,447.12-162,049.05-82,658.75

Finding the Fourth Proportional to 108,447.12, 162,049.05 and 82,658.75

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Solution

The fourth proportional to 108,447.12, 162,049.05 and 82,658.75 is: 123,514.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,447.12 : 162,049.05 = 82,658.75 : x
  2. Step 2: Convert to fraction form
    108,447.12/162,049.05 = 82,658.75/x
  3. Step 3: Cross multiply
    108,447.12x = 162,049.05 × 82,658.75
  4. Step 4: Simplify right side
    108,447.12x = 13,394,771,101.44
  5. Step 5: Solve for x
    x = 13,394,771,101.44/108,447.12
  6. Step 6: Final answer
    x = 123,514.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.