Home / 198,931.24-274,528.60-108,289.80

Finding the Fourth Proportional to 198,931.24, 274,528.60 and 108,289.80

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Solution

The fourth proportional to 198,931.24, 274,528.60 and 108,289.80 is: 149,441.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,931.24 : 274,528.60 = 108,289.80 : x
  2. Step 2: Convert to fraction form
    198,931.24/274,528.60 = 108,289.80/x
  3. Step 3: Cross multiply
    198,931.24x = 274,528.60 × 108,289.80
  4. Step 4: Simplify right side
    198,931.24x = 29,728,647,188.28
  5. Step 5: Solve for x
    x = 29,728,647,188.28/198,931.24
  6. Step 6: Final answer
    x = 149,441.82

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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.