Home / 198,634.32-274,120.79-107,996.38

Finding the Fourth Proportional to 198,634.32, 274,120.79 and 107,996.38

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Solution

The fourth proportional to 198,634.32, 274,120.79 and 107,996.38 is: 149,037.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,634.32 : 274,120.79 = 107,996.38 : x
  2. Step 2: Convert to fraction form
    198,634.32/274,120.79 = 107,996.38/x
  3. Step 3: Cross multiply
    198,634.32x = 274,120.79 × 107,996.38
  4. Step 4: Simplify right side
    198,634.32x = 29,604,051,777.46
  5. Step 5: Solve for x
    x = 29,604,051,777.46/198,634.32
  6. Step 6: Final answer
    x = 149,037.95

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1.5x scale

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.