Home / 123,119.26-169,906.56-69,406.90

Finding the Fourth Proportional to 123,119.26, 169,906.56 and 69,406.90

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Solution

The fourth proportional to 123,119.26, 169,906.56 and 69,406.90 is: 95,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,119.26 : 169,906.56 = 69,406.90 : x
  2. Step 2: Convert to fraction form
    123,119.26/169,906.56 = 69,406.90/x
  3. Step 3: Cross multiply
    123,119.26x = 169,906.56 × 69,406.90
  4. Step 4: Simplify right side
    123,119.26x = 11,792,687,619.26
  5. Step 5: Solve for x
    x = 11,792,687,619.26/123,119.26
  6. Step 6: Final answer
    x = 95,782.64

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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.