Home / 120,348.44-166,082.19-66,638.42

Finding the Fourth Proportional to 120,348.44, 166,082.19 and 66,638.42

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Solution

The fourth proportional to 120,348.44, 166,082.19 and 66,638.42 is: 91,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,348.44 : 166,082.19 = 66,638.42 : x
  2. Step 2: Convert to fraction form
    120,348.44/166,082.19 = 66,638.42/x
  3. Step 3: Cross multiply
    120,348.44x = 166,082.19 × 66,638.42
  4. Step 4: Simplify right side
    120,348.44x = 11,067,454,731.74
  5. Step 5: Solve for x
    x = 11,067,454,731.74/120,348.44
  6. Step 6: Final answer
    x = 91,961.76

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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.