Home / 123,465.22-170,382.24-66,876.64

Finding the Fourth Proportional to 123,465.22, 170,382.24 and 66,876.64

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Solution

The fourth proportional to 123,465.22, 170,382.24 and 66,876.64 is: 92,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,465.22 : 170,382.24 = 66,876.64 : x
  2. Step 2: Convert to fraction form
    123,465.22/170,382.24 = 66,876.64/x
  3. Step 3: Cross multiply
    123,465.22x = 170,382.24 × 66,876.64
  4. Step 4: Simplify right side
    123,465.22x = 11,394,591,726.87
  5. Step 5: Solve for x
    x = 11,394,591,726.87/123,465.22
  6. Step 6: Final answer
    x = 92,289.89

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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.