Home / 198,863.28-274,431.36-109,439.28

Finding the Fourth Proportional to 198,863.28, 274,431.36 and 109,439.28

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Solution

The fourth proportional to 198,863.28, 274,431.36 and 109,439.28 is: 151,026.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,863.28 : 274,431.36 = 109,439.28 : x
  2. Step 2: Convert to fraction form
    198,863.28/274,431.36 = 109,439.28/x
  3. Step 3: Cross multiply
    198,863.28x = 274,431.36 × 109,439.28
  4. Step 4: Simplify right side
    198,863.28x = 30,033,570,447.82
  5. Step 5: Solve for x
    x = 30,033,570,447.82/198,863.28
  6. Step 6: Final answer
    x = 151,026.22

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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.