Home / 111,986.12-167,982.42-37,138.88

Finding the Fourth Proportional to 111,986.12, 167,982.42 and 37,138.88

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Solution

The fourth proportional to 111,986.12, 167,982.42 and 37,138.88 is: 55,709.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,986.12 : 167,982.42 = 37,138.88 : x
  2. Step 2: Convert to fraction form
    111,986.12/167,982.42 = 37,138.88/x
  3. Step 3: Cross multiply
    111,986.12x = 167,982.42 × 37,138.88
  4. Step 4: Simplify right side
    111,986.12x = 6,238,678,938.49
  5. Step 5: Solve for x
    x = 6,238,678,938.49/111,986.12
  6. Step 6: Final answer
    x = 55,709.39

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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.