Home / 123,761.30-170,790.76-67,172.66

Finding the Fourth Proportional to 123,761.30, 170,790.76 and 67,172.66

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Solution

The fourth proportional to 123,761.30, 170,790.76 and 67,172.66 is: 92,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,761.30 : 170,790.76 = 67,172.66 : x
  2. Step 2: Convert to fraction form
    123,761.30/170,790.76 = 67,172.66/x
  3. Step 3: Cross multiply
    123,761.30x = 170,790.76 × 67,172.66
  4. Step 4: Simplify right side
    123,761.30x = 11,472,469,652.62
  5. Step 5: Solve for x
    x = 11,472,469,652.62/123,761.30
  6. Step 6: Final answer
    x = 92,698.36

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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.