Home / 111,780.20-167,686.97-36,908.25

Finding the Fourth Proportional to 111,780.20, 167,686.97 and 36,908.25

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Solution

The fourth proportional to 111,780.20, 167,686.97 and 36,908.25 is: 55,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,780.20 : 167,686.97 = 36,908.25 : x
  2. Step 2: Convert to fraction form
    111,780.20/167,686.97 = 36,908.25/x
  3. Step 3: Cross multiply
    111,780.20x = 167,686.97 × 36,908.25
  4. Step 4: Simplify right side
    111,780.20x = 6,189,032,425.96
  5. Step 5: Solve for x
    x = 6,189,032,425.96/111,780.20
  6. Step 6: Final answer
    x = 55,367.88

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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.