Home / 123,418.28-170,317.21-66,829.66

Finding the Fourth Proportional to 123,418.28, 170,317.21 and 66,829.66

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Solution

The fourth proportional to 123,418.28, 170,317.21 and 66,829.66 is: 92,224.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418.28 : 170,317.21 = 66,829.66 : x
  2. Step 2: Convert to fraction form
    123,418.28/170,317.21 = 66,829.66/x
  3. Step 3: Cross multiply
    123,418.28x = 170,317.21 × 66,829.66
  4. Step 4: Simplify right side
    123,418.28x = 11,382,241,236.45
  5. Step 5: Solve for x
    x = 11,382,241,236.45/123,418.28
  6. Step 6: Final answer
    x = 92,224.92

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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.