Home / 192,086.28-287,896.14-135,942.80

Finding the Fourth Proportional to 192,086.28, 287,896.14 and 135,942.80

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Solution

The fourth proportional to 192,086.28, 287,896.14 and 135,942.80 is: 203,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,086.28 : 287,896.14 = 135,942.80 : x
  2. Step 2: Convert to fraction form
    192,086.28/287,896.14 = 135,942.80/x
  3. Step 3: Cross multiply
    192,086.28x = 287,896.14 × 135,942.80
  4. Step 4: Simplify right side
    192,086.28x = 39,137,408,440.39
  5. Step 5: Solve for x
    x = 39,137,408,440.39/192,086.28
  6. Step 6: Final answer
    x = 203,749.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.