Home / 120,819.77-166,726.66-67,108.23

Finding the Fourth Proportional to 120,819.77, 166,726.66 and 67,108.23

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Solution

The fourth proportional to 120,819.77, 166,726.66 and 67,108.23 is: 92,606.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,819.77 : 166,726.66 = 67,108.23 : x
  2. Step 2: Convert to fraction form
    120,819.77/166,726.66 = 67,108.23/x
  3. Step 3: Cross multiply
    120,819.77x = 166,726.66 × 67,108.23
  4. Step 4: Simplify right side
    120,819.77x = 11,188,730,212.78
  5. Step 5: Solve for x
    x = 11,188,730,212.78/120,819.77
  6. Step 6: Final answer
    x = 92,606.79

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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.