Home / 120,819.74-166,726.60-67,108.18

Finding the Fourth Proportional to 120,819.74, 166,726.60 and 67,108.18

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Solution

The fourth proportional to 120,819.74, 166,726.60 and 67,108.18 is: 92,606.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,819.74 : 166,726.60 = 67,108.18 : x
  2. Step 2: Convert to fraction form
    120,819.74/166,726.60 = 67,108.18/x
  3. Step 3: Cross multiply
    120,819.74x = 166,726.60 × 67,108.18
  4. Step 4: Simplify right side
    120,819.74x = 11,188,718,099.00
  5. Step 5: Solve for x
    x = 11,188,718,099.00/120,819.74
  6. Step 6: Final answer
    x = 92,606.71

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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.