Home / 198,513.28-273,965.12-109,107.84

Finding the Fourth Proportional to 198,513.28, 273,965.12 and 109,107.84

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Solution

The fourth proportional to 198,513.28, 273,965.12 and 109,107.84 is: 150,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,513.28 : 273,965.12 = 109,107.84 : x
  2. Step 2: Convert to fraction form
    198,513.28/273,965.12 = 109,107.84/x
  3. Step 3: Cross multiply
    198,513.28x = 273,965.12 × 109,107.84
  4. Step 4: Simplify right side
    198,513.28x = 29,891,742,478.54
  5. Step 5: Solve for x
    x = 29,891,742,478.54/198,513.28
  6. Step 6: Final answer
    x = 150,578.05

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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.