Home / 123,154.43-169,952.83-69,439.12

Finding the Fourth Proportional to 123,154.43, 169,952.83 and 69,439.12

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Solution

The fourth proportional to 123,154.43, 169,952.83 and 69,439.12 is: 95,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,154.43 : 169,952.83 = 69,439.12 : x
  2. Step 2: Convert to fraction form
    123,154.43/169,952.83 = 69,439.12/x
  3. Step 3: Cross multiply
    123,154.43x = 169,952.83 × 69,439.12
  4. Step 4: Simplify right side
    123,154.43x = 11,801,375,704.81
  5. Step 5: Solve for x
    x = 11,801,375,704.81/123,154.43
  6. Step 6: Final answer
    x = 95,825.84

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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.