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Finding the Fourth Proportional to 123,760.68, 170,785.17 and 67,170.84

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Solution

The fourth proportional to 123,760.68, 170,785.17 and 67,170.84 is: 92,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,760.68 : 170,785.17 = 67,170.84 : x
  2. Step 2: Convert to fraction form
    123,760.68/170,785.17 = 67,170.84/x
  3. Step 3: Cross multiply
    123,760.68x = 170,785.17 × 67,170.84
  4. Step 4: Simplify right side
    123,760.68x = 11,471,783,328.44
  5. Step 5: Solve for x
    x = 11,471,783,328.44/123,760.68
  6. Step 6: Final answer
    x = 92,693.28

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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.