Home / 120,610.20-166,452.28-66,912.50

Finding the Fourth Proportional to 120,610.20, 166,452.28 and 66,912.50

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Solution

The fourth proportional to 120,610.20, 166,452.28 and 66,912.50 is: 92,344.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,610.20 : 166,452.28 = 66,912.50 : x
  2. Step 2: Convert to fraction form
    120,610.20/166,452.28 = 66,912.50/x
  3. Step 3: Cross multiply
    120,610.20x = 166,452.28 × 66,912.50
  4. Step 4: Simplify right side
    120,610.20x = 11,137,738,185.50
  5. Step 5: Solve for x
    x = 11,137,738,185.50/120,610.20
  6. Step 6: Final answer
    x = 92,344.91

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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.