Home / 198,151.25-297,223.43-79,819.56

Finding the Fourth Proportional to 198,151.25, 297,223.43 and 79,819.56

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Solution

The fourth proportional to 198,151.25, 297,223.43 and 79,819.56 is: 119,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,151.25 : 297,223.43 = 79,819.56 : x
  2. Step 2: Convert to fraction form
    198,151.25/297,223.43 = 79,819.56/x
  3. Step 3: Cross multiply
    198,151.25x = 297,223.43 × 79,819.56
  4. Step 4: Simplify right side
    198,151.25x = 23,724,243,005.19
  5. Step 5: Solve for x
    x = 23,724,243,005.19/198,151.25
  6. Step 6: Final answer
    x = 119,727.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.