Home / 198,819.79-274,369.17-118,245.54

Finding the Fourth Proportional to 198,819.79, 274,369.17 and 118,245.54

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Solution

The fourth proportional to 198,819.79, 274,369.17 and 118,245.54 is: 163,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,819.79 : 274,369.17 = 118,245.54 : x
  2. Step 2: Convert to fraction form
    198,819.79/274,369.17 = 118,245.54/x
  3. Step 3: Cross multiply
    198,819.79x = 274,369.17 × 118,245.54
  4. Step 4: Simplify right side
    198,819.79x = 32,442,930,666.00
  5. Step 5: Solve for x
    x = 32,442,930,666.00/198,819.79
  6. Step 6: Final answer
    x = 163,177.58

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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.