Home / 198,279.82-273,628.12-107,636.50

Finding the Fourth Proportional to 198,279.82, 273,628.12 and 107,636.50

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Solution

The fourth proportional to 198,279.82, 273,628.12 and 107,636.50 is: 148,539.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,279.82 : 273,628.12 = 107,636.50 : x
  2. Step 2: Convert to fraction form
    198,279.82/273,628.12 = 107,636.50/x
  3. Step 3: Cross multiply
    198,279.82x = 273,628.12 × 107,636.50
  4. Step 4: Simplify right side
    198,279.82x = 29,452,373,138.38
  5. Step 5: Solve for x
    x = 29,452,373,138.38/198,279.82
  6. Step 6: Final answer
    x = 148,539.44

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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.