Home / 123,995.20-170,952.77-80,310.03

Finding the Fourth Proportional to 123,995.20, 170,952.77 and 80,310.03

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Solution

The fourth proportional to 123,995.20, 170,952.77 and 80,310.03 is: 110,723.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,995.20 : 170,952.77 = 80,310.03 : x
  2. Step 2: Convert to fraction form
    123,995.20/170,952.77 = 80,310.03/x
  3. Step 3: Cross multiply
    123,995.20x = 170,952.77 × 80,310.03
  4. Step 4: Simplify right side
    123,995.20x = 13,729,221,044.66
  5. Step 5: Solve for x
    x = 13,729,221,044.66/123,995.20
  6. Step 6: Final answer
    x = 110,723.81

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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.