Home / 120,921.92-166,859.56-67,198.27

Finding the Fourth Proportional to 120,921.92, 166,859.56 and 67,198.27

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Solution

The fourth proportional to 120,921.92, 166,859.56 and 67,198.27 is: 92,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,921.92 : 166,859.56 = 67,198.27 : x
  2. Step 2: Convert to fraction form
    120,921.92/166,859.56 = 67,198.27/x
  3. Step 3: Cross multiply
    120,921.92x = 166,859.56 × 67,198.27
  4. Step 4: Simplify right side
    120,921.92x = 11,212,673,764.96
  5. Step 5: Solve for x
    x = 11,212,673,764.96/120,921.92
  6. Step 6: Final answer
    x = 92,726.56

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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.