Home / 109,469.22-151,067.55-61,722.57

Finding the Fourth Proportional to 109,469.22, 151,067.55 and 61,722.57

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Solution

The fourth proportional to 109,469.22, 151,067.55 and 61,722.57 is: 85,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,469.22 : 151,067.55 = 61,722.57 : x
  2. Step 2: Convert to fraction form
    109,469.22/151,067.55 = 61,722.57/x
  3. Step 3: Cross multiply
    109,469.22x = 151,067.55 × 61,722.57
  4. Step 4: Simplify right side
    109,469.22x = 9,324,277,429.60
  5. Step 5: Solve for x
    x = 9,324,277,429.60/109,469.22
  6. Step 6: Final answer
    x = 85,177.16

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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.