Home / 123,311.38-170,173.13-74,896.96

Finding the Fourth Proportional to 123,311.38, 170,173.13 and 74,896.96

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Solution

The fourth proportional to 123,311.38, 170,173.13 and 74,896.96 is: 103,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,311.38 : 170,173.13 = 74,896.96 : x
  2. Step 2: Convert to fraction form
    123,311.38/170,173.13 = 74,896.96/x
  3. Step 3: Cross multiply
    123,311.38x = 170,173.13 × 74,896.96
  4. Step 4: Simplify right side
    123,311.38x = 12,745,449,736.20
  5. Step 5: Solve for x
    x = 12,745,449,736.20/123,311.38
  6. Step 6: Final answer
    x = 103,359.88

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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.