Home / 120,476.76-166,255.97-66,761.61

Finding the Fourth Proportional to 120,476.76, 166,255.97 and 66,761.61

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Solution

The fourth proportional to 120,476.76, 166,255.97 and 66,761.61 is: 92,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,476.76 : 166,255.97 = 66,761.61 : x
  2. Step 2: Convert to fraction form
    120,476.76/166,255.97 = 66,761.61/x
  3. Step 3: Cross multiply
    120,476.76x = 166,255.97 × 66,761.61
  4. Step 4: Simplify right side
    120,476.76x = 11,099,516,229.31
  5. Step 5: Solve for x
    x = 11,099,516,229.31/120,476.76
  6. Step 6: Final answer
    x = 92,129.94

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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.