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Finding the Fourth Proportional to 111,828, 167,742 and 28,722

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Solution

The fourth proportional to 111,828, 167,742 and 28,722 is: 43,083

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,828 : 167,742 = 28,722 : x
  2. Step 2: Convert to fraction form
    111,828/167,742 = 28,722/x
  3. Step 3: Cross multiply
    111,828x = 167,742 × 28,722
  4. Step 4: Simplify right side
    111,828x = 4,817,885,724
  5. Step 5: Solve for x
    x = 4,817,885,724/111,828
  6. Step 6: Final answer
    x = 43,083

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.