Home / 123,229.75-170,057.07-66,641.14

Finding the Fourth Proportional to 123,229.75, 170,057.07 and 66,641.14

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Solution

The fourth proportional to 123,229.75, 170,057.07 and 66,641.14 is: 91,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,229.75 : 170,057.07 = 66,641.14 : x
  2. Step 2: Convert to fraction form
    123,229.75/170,057.07 = 66,641.14/x
  3. Step 3: Cross multiply
    123,229.75x = 170,057.07 × 66,641.14
  4. Step 4: Simplify right side
    123,229.75x = 11,332,797,009.86
  5. Step 5: Solve for x
    x = 11,332,797,009.86/123,229.75
  6. Step 6: Final answer
    x = 91,964.78

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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.