Home / 115,132.69-172,449.06-55,843.75

Finding the Fourth Proportional to 115,132.69, 172,449.06 and 55,843.75

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Solution

The fourth proportional to 115,132.69, 172,449.06 and 55,843.75 is: 83,644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,132.69 : 172,449.06 = 55,843.75 : x
  2. Step 2: Convert to fraction form
    115,132.69/172,449.06 = 55,843.75/x
  3. Step 3: Cross multiply
    115,132.69x = 172,449.06 × 55,843.75
  4. Step 4: Simplify right side
    115,132.69x = 9,630,202,194.38
  5. Step 5: Solve for x
    x = 9,630,202,194.38/115,132.69
  6. Step 6: Final answer
    x = 83,644.38

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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.