Home / 120,932.22-166,967.91-108,145.74

Finding the Fourth Proportional to 120,932.22, 166,967.91 and 108,145.74

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Solution

The fourth proportional to 120,932.22, 166,967.91 and 108,145.74 is: 149,313.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,932.22 : 166,967.91 = 108,145.74 : x
  2. Step 2: Convert to fraction form
    120,932.22/166,967.91 = 108,145.74/x
  3. Step 3: Cross multiply
    120,932.22x = 166,967.91 × 108,145.74
  4. Step 4: Simplify right side
    120,932.22x = 18,056,868,183.20
  5. Step 5: Solve for x
    x = 18,056,868,183.20/120,932.22
  6. Step 6: Final answer
    x = 149,313.96

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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.