Home / 120,845.80-166,793.88-67,149.28

Finding the Fourth Proportional to 120,845.80, 166,793.88 and 67,149.28

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Solution

The fourth proportional to 120,845.80, 166,793.88 and 67,149.28 is: 92,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,845.80 : 166,793.88 = 67,149.28 : x
  2. Step 2: Convert to fraction form
    120,845.80/166,793.88 = 67,149.28/x
  3. Step 3: Cross multiply
    120,845.80x = 166,793.88 × 67,149.28
  4. Step 4: Simplify right side
    120,845.80x = 11,200,088,950.41
  5. Step 5: Solve for x
    x = 11,200,088,950.41/120,845.80
  6. Step 6: Final answer
    x = 92,680.83

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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.