Home / 120,912.48-166,864.77-67,202.73

Finding the Fourth Proportional to 120,912.48, 166,864.77 and 67,202.73

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Solution

The fourth proportional to 120,912.48, 166,864.77 and 67,202.73 is: 92,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,912.48 : 166,864.77 = 67,202.73 : x
  2. Step 2: Convert to fraction form
    120,912.48/166,864.77 = 67,202.73/x
  3. Step 3: Cross multiply
    120,912.48x = 166,864.77 × 67,202.73
  4. Step 4: Simplify right side
    120,912.48x = 11,213,768,084.82
  5. Step 5: Solve for x
    x = 11,213,768,084.82/120,912.48
  6. Step 6: Final answer
    x = 92,742.85

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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.