Home / 120,481.28-166,268.46-72,725.30

Finding the Fourth Proportional to 120,481.28, 166,268.46 and 72,725.30

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Solution

The fourth proportional to 120,481.28, 166,268.46 and 72,725.30 is: 100,363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,481.28 : 166,268.46 = 72,725.30 : x
  2. Step 2: Convert to fraction form
    120,481.28/166,268.46 = 72,725.30/x
  3. Step 3: Cross multiply
    120,481.28x = 166,268.46 × 72,725.30
  4. Step 4: Simplify right side
    120,481.28x = 12,091,923,634.04
  5. Step 5: Solve for x
    x = 12,091,923,634.04/120,481.28
  6. Step 6: Final answer
    x = 100,363.51

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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.