Home / 120,839.24-166,690.98-112,286.38

Finding the Fourth Proportional to 120,839.24, 166,690.98 and 112,286.38

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Solution

The fourth proportional to 120,839.24, 166,690.98 and 112,286.38 is: 154,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,839.24 : 166,690.98 = 112,286.38 : x
  2. Step 2: Convert to fraction form
    120,839.24/166,690.98 = 112,286.38/x
  3. Step 3: Cross multiply
    120,839.24x = 166,690.98 × 112,286.38
  4. Step 4: Simplify right side
    120,839.24x = 18,717,126,722.85
  5. Step 5: Solve for x
    x = 18,717,126,722.85/120,839.24
  6. Step 6: Final answer
    x = 154,892.79

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1.5x scale

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.