Home / 120,942.24-166,900.92-67,232.28

Finding the Fourth Proportional to 120,942.24, 166,900.92 and 67,232.28

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Solution

The fourth proportional to 120,942.24, 166,900.92 and 67,232.28 is: 92,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,942.24 : 166,900.92 = 67,232.28 : x
  2. Step 2: Convert to fraction form
    120,942.24/166,900.92 = 67,232.28/x
  3. Step 3: Cross multiply
    120,942.24x = 166,900.92 × 67,232.28
  4. Step 4: Simplify right side
    120,942.24x = 11,221,129,385.70
  5. Step 5: Solve for x
    x = 11,221,129,385.70/120,942.24
  6. Step 6: Final answer
    x = 92,780.90

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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.