Home / 120,712.66-166,575.68-66,997.70

Finding the Fourth Proportional to 120,712.66, 166,575.68 and 66,997.70

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Solution

The fourth proportional to 120,712.66, 166,575.68 and 66,997.70 is: 92,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,712.66 : 166,575.68 = 66,997.70 : x
  2. Step 2: Convert to fraction form
    120,712.66/166,575.68 = 66,997.70/x
  3. Step 3: Cross multiply
    120,712.66x = 166,575.68 × 66,997.70
  4. Step 4: Simplify right side
    120,712.66x = 11,160,187,435.94
  5. Step 5: Solve for x
    x = 11,160,187,435.94/120,712.66
  6. Step 6: Final answer
    x = 92,452.50

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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.