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Finding the Fourth Proportional to 120,481.01, 166,259.85 and 72,726.04

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Solution

The fourth proportional to 120,481.01, 166,259.85 and 72,726.04 is: 100,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,481.01 : 166,259.85 = 72,726.04 : x
  2. Step 2: Convert to fraction form
    120,481.01/166,259.85 = 72,726.04/x
  3. Step 3: Cross multiply
    120,481.01x = 166,259.85 × 72,726.04
  4. Step 4: Simplify right side
    120,481.01x = 12,091,420,501.49
  5. Step 5: Solve for x
    x = 12,091,420,501.49/120,481.01
  6. Step 6: Final answer
    x = 100,359.55

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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.