Home / 189,109.20-283,404.60-133,640.40

Finding the Fourth Proportional to 189,109.20, 283,404.60 and 133,640.40

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Solution

The fourth proportional to 189,109.20, 283,404.60 and 133,640.40 is: 200,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,109.20 : 283,404.60 = 133,640.40 : x
  2. Step 2: Convert to fraction form
    189,109.20/283,404.60 = 133,640.40/x
  3. Step 3: Cross multiply
    189,109.20x = 283,404.60 × 133,640.40
  4. Step 4: Simplify right side
    189,109.20x = 37,874,304,105.84
  5. Step 5: Solve for x
    x = 37,874,304,105.84/189,109.20
  6. Step 6: Final answer
    x = 200,277.43

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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.