Home / 198,863.39-274,431.53-109,439.39

Finding the Fourth Proportional to 198,863.39, 274,431.53 and 109,439.39

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Solution

The fourth proportional to 198,863.39, 274,431.53 and 109,439.39 is: 151,026.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,863.39 : 274,431.53 = 109,439.39 : x
  2. Step 2: Convert to fraction form
    198,863.39/274,431.53 = 109,439.39/x
  3. Step 3: Cross multiply
    198,863.39x = 274,431.53 × 109,439.39
  4. Step 4: Simplify right side
    198,863.39x = 30,033,618,692.77
  5. Step 5: Solve for x
    x = 30,033,618,692.77/198,863.39
  6. Step 6: Final answer
    x = 151,026.38

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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.