Home / 123,660.75-170,651.85-69,944.61

Finding the Fourth Proportional to 123,660.75, 170,651.85 and 69,944.61

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Solution

The fourth proportional to 123,660.75, 170,651.85 and 69,944.61 is: 96,523.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,660.75 : 170,651.85 = 69,944.61 : x
  2. Step 2: Convert to fraction form
    123,660.75/170,651.85 = 69,944.61/x
  3. Step 3: Cross multiply
    123,660.75x = 170,651.85 × 69,944.61
  4. Step 4: Simplify right side
    123,660.75x = 11,936,177,094.03
  5. Step 5: Solve for x
    x = 11,936,177,094.03/123,660.75
  6. Step 6: Final answer
    x = 96,523.57

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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.