Home / 120,819.92-166,726.86-67,108.37

Finding the Fourth Proportional to 120,819.92, 166,726.86 and 67,108.37

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Solution

The fourth proportional to 120,819.92, 166,726.86 and 67,108.37 is: 92,606.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,819.92 : 166,726.86 = 67,108.37 : x
  2. Step 2: Convert to fraction form
    120,819.92/166,726.86 = 67,108.37/x
  3. Step 3: Cross multiply
    120,819.92x = 166,726.86 × 67,108.37
  4. Step 4: Simplify right side
    120,819.92x = 11,188,766,724.53
  5. Step 5: Solve for x
    x = 11,188,766,724.53/120,819.92
  6. Step 6: Final answer
    x = 92,606.97

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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.