Home / 120,481.14-166,268.28-72,725.16

Finding the Fourth Proportional to 120,481.14, 166,268.28 and 72,725.16

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Solution

The fourth proportional to 120,481.14, 166,268.28 and 72,725.16 is: 100,363.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,481.14 : 166,268.28 = 72,725.16 : x
  2. Step 2: Convert to fraction form
    120,481.14/166,268.28 = 72,725.16/x
  3. Step 3: Cross multiply
    120,481.14x = 166,268.28 × 72,725.16
  4. Step 4: Simplify right side
    120,481.14x = 12,091,887,265.92
  5. Step 5: Solve for x
    x = 12,091,887,265.92/120,481.14
  6. Step 6: Final answer
    x = 100,363.32

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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.