Home / 120,399.24-166,150.97-65,951.64

Finding the Fourth Proportional to 120,399.24, 166,150.97 and 65,951.64

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Solution

The fourth proportional to 120,399.24, 166,150.97 and 65,951.64 is: 91,013.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,399.24 : 166,150.97 = 65,951.64 : x
  2. Step 2: Convert to fraction form
    120,399.24/166,150.97 = 65,951.64/x
  3. Step 3: Cross multiply
    120,399.24x = 166,150.97 × 65,951.64
  4. Step 4: Simplify right side
    120,399.24x = 10,957,928,959.09
  5. Step 5: Solve for x
    x = 10,957,928,959.09/120,399.24
  6. Step 6: Final answer
    x = 91,013.27

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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.