Home / 120,820.14-166,726.11-67,108.44

Finding the Fourth Proportional to 120,820.14, 166,726.11 and 67,108.44

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Solution

The fourth proportional to 120,820.14, 166,726.11 and 67,108.44 is: 92,606.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,820.14 : 166,726.11 = 67,108.44 : x
  2. Step 2: Convert to fraction form
    120,820.14/166,726.11 = 67,108.44/x
  3. Step 3: Cross multiply
    120,820.14x = 166,726.11 × 67,108.44
  4. Step 4: Simplify right side
    120,820.14x = 11,188,729,149.37
  5. Step 5: Solve for x
    x = 11,188,729,149.37/120,820.14
  6. Step 6: Final answer
    x = 92,606.49

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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.