Home / 120,195.23-165,849.60-66,469.75

Finding the Fourth Proportional to 120,195.23, 165,849.60 and 66,469.75

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Solution

The fourth proportional to 120,195.23, 165,849.60 and 66,469.75 is: 91,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,195.23 : 165,849.60 = 66,469.75 : x
  2. Step 2: Convert to fraction form
    120,195.23/165,849.60 = 66,469.75/x
  3. Step 3: Cross multiply
    120,195.23x = 165,849.60 × 66,469.75
  4. Step 4: Simplify right side
    120,195.23x = 11,023,981,449.60
  5. Step 5: Solve for x
    x = 11,023,981,449.60/120,195.23
  6. Step 6: Final answer
    x = 91,717.30

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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.