Home / 111,987.56-167,979.26-27,747.92

Finding the Fourth Proportional to 111,987.56, 167,979.26 and 27,747.92

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Solution

The fourth proportional to 111,987.56, 167,979.26 and 27,747.92 is: 41,621.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,987.56 : 167,979.26 = 27,747.92 : x
  2. Step 2: Convert to fraction form
    111,987.56/167,979.26 = 27,747.92/x
  3. Step 3: Cross multiply
    111,987.56x = 167,979.26 × 27,747.92
  4. Step 4: Simplify right side
    111,987.56x = 4,661,075,418.72
  5. Step 5: Solve for x
    x = 4,661,075,418.72/111,987.56
  6. Step 6: Final answer
    x = 41,621.37

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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.