Home / 111,815.54-167,687.77-36,921.72

Finding the Fourth Proportional to 111,815.54, 167,687.77 and 36,921.72

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Solution

The fourth proportional to 111,815.54, 167,687.77 and 36,921.72 is: 55,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,815.54 : 167,687.77 = 36,921.72 : x
  2. Step 2: Convert to fraction form
    111,815.54/167,687.77 = 36,921.72/x
  3. Step 3: Cross multiply
    111,815.54x = 167,687.77 × 36,921.72
  4. Step 4: Simplify right side
    111,815.54x = 6,191,321,497.12
  5. Step 5: Solve for x
    x = 6,191,321,497.12/111,815.54
  6. Step 6: Final answer
    x = 55,370.85

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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.