Home / 123,305.68-170,161.92-66,717.04

Finding the Fourth Proportional to 123,305.68, 170,161.92 and 66,717.04

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Solution

The fourth proportional to 123,305.68, 170,161.92 and 66,717.04 is: 92,069.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,305.68 : 170,161.92 = 66,717.04 : x
  2. Step 2: Convert to fraction form
    123,305.68/170,161.92 = 66,717.04/x
  3. Step 3: Cross multiply
    123,305.68x = 170,161.92 × 66,717.04
  4. Step 4: Simplify right side
    123,305.68x = 11,352,699,623.12
  5. Step 5: Solve for x
    x = 11,352,699,623.12/123,305.68
  6. Step 6: Final answer
    x = 92,069.56

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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.