Home / 198,621.97-274,097.73-107,977.84

Finding the Fourth Proportional to 198,621.97, 274,097.73 and 107,977.84

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Solution

The fourth proportional to 198,621.97, 274,097.73 and 107,977.84 is: 149,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,621.97 : 274,097.73 = 107,977.84 : x
  2. Step 2: Convert to fraction form
    198,621.97/274,097.73 = 107,977.84/x
  3. Step 3: Cross multiply
    198,621.97x = 274,097.73 × 107,977.84
  4. Step 4: Simplify right side
    198,621.97x = 29,596,480,834.30
  5. Step 5: Solve for x
    x = 29,596,480,834.30/198,621.97
  6. Step 6: Final answer
    x = 149,009.10

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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.