Home / 198,969.50-274,811.19-131,784.86

Finding the Fourth Proportional to 198,969.50, 274,811.19 and 131,784.86

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Solution

The fourth proportional to 198,969.50, 274,811.19 and 131,784.86 is: 182,017.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,969.50 : 274,811.19 = 131,784.86 : x
  2. Step 2: Convert to fraction form
    198,969.50/274,811.19 = 131,784.86/x
  3. Step 3: Cross multiply
    198,969.50x = 274,811.19 × 131,784.86
  4. Step 4: Simplify right side
    198,969.50x = 36,215,954,200.58
  5. Step 5: Solve for x
    x = 36,215,954,200.58/198,969.50
  6. Step 6: Final answer
    x = 182,017.62

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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.