Home / 198,828.72-274,380.18-108,182.34

Finding the Fourth Proportional to 198,828.72, 274,380.18 and 108,182.34

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Solution

The fourth proportional to 198,828.72, 274,380.18 and 108,182.34 is: 149,289.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,828.72 : 274,380.18 = 108,182.34 : x
  2. Step 2: Convert to fraction form
    198,828.72/274,380.18 = 108,182.34/x
  3. Step 3: Cross multiply
    198,828.72x = 274,380.18 × 108,182.34
  4. Step 4: Simplify right side
    198,828.72x = 29,683,089,922.02
  5. Step 5: Solve for x
    x = 29,683,089,922.02/198,828.72
  6. Step 6: Final answer
    x = 149,289.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.