Home / 115,987.98-173,939.29-40,067.20

Finding the Fourth Proportional to 115,987.98, 173,939.29 and 40,067.20

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Solution

The fourth proportional to 115,987.98, 173,939.29 and 40,067.20 is: 60,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,987.98 : 173,939.29 = 40,067.20 : x
  2. Step 2: Convert to fraction form
    115,987.98/173,939.29 = 40,067.20/x
  3. Step 3: Cross multiply
    115,987.98x = 173,939.29 × 40,067.20
  4. Step 4: Simplify right side
    115,987.98x = 6,969,260,755.14
  5. Step 5: Solve for x
    x = 6,969,260,755.14/115,987.98
  6. Step 6: Final answer
    x = 60,086.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.