Home / 123,760.46-170,789.68-67,172.06

Finding the Fourth Proportional to 123,760.46, 170,789.68 and 67,172.06

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Solution

The fourth proportional to 123,760.46, 170,789.68 and 67,172.06 is: 92,697.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,760.46 : 170,789.68 = 67,172.06 : x
  2. Step 2: Convert to fraction form
    123,760.46/170,789.68 = 67,172.06/x
  3. Step 3: Cross multiply
    123,760.46x = 170,789.68 × 67,172.06
  4. Step 4: Simplify right side
    123,760.46x = 11,472,293,610.46
  5. Step 5: Solve for x
    x = 11,472,293,610.46/123,760.46
  6. Step 6: Final answer
    x = 92,697.57

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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.