Home / 120,568.20-166,385.52-66,853.86

Finding the Fourth Proportional to 120,568.20, 166,385.52 and 66,853.86

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Solution

The fourth proportional to 120,568.20, 166,385.52 and 66,853.86 is: 92,259.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,568.20 : 166,385.52 = 66,853.86 : x
  2. Step 2: Convert to fraction form
    120,568.20/166,385.52 = 66,853.86/x
  3. Step 3: Cross multiply
    120,568.20x = 166,385.52 × 66,853.86
  4. Step 4: Simplify right side
    120,568.20x = 11,123,514,260.11
  5. Step 5: Solve for x
    x = 11,123,514,260.11/120,568.20
  6. Step 6: Final answer
    x = 92,259.11

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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.