Home / 123,610.72-170,581.26-67,021.96

Finding the Fourth Proportional to 123,610.72, 170,581.26 and 67,021.96

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Solution

The fourth proportional to 123,610.72, 170,581.26 and 67,021.96 is: 92,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,610.72 : 170,581.26 = 67,021.96 : x
  2. Step 2: Convert to fraction form
    123,610.72/170,581.26 = 67,021.96/x
  3. Step 3: Cross multiply
    123,610.72x = 170,581.26 × 67,021.96
  4. Step 4: Simplify right side
    123,610.72x = 11,432,690,384.47
  5. Step 5: Solve for x
    x = 11,432,690,384.47/123,610.72
  6. Step 6: Final answer
    x = 92,489.47

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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.