Home / 198,931.20-274,528.54-108,289.76

Finding the Fourth Proportional to 198,931.20, 274,528.54 and 108,289.76

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Solution

The fourth proportional to 198,931.20, 274,528.54 and 108,289.76 is: 149,441.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,931.20 : 274,528.54 = 108,289.76 : x
  2. Step 2: Convert to fraction form
    198,931.20/274,528.54 = 108,289.76/x
  3. Step 3: Cross multiply
    198,931.20x = 274,528.54 × 108,289.76
  4. Step 4: Simplify right side
    198,931.20x = 29,728,629,709.75
  5. Step 5: Solve for x
    x = 29,728,629,709.75/198,931.20
  6. Step 6: Final answer
    x = 149,441.77

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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.