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Finding the Fourth Proportional to 133,783.38, 200,685.99 and 67,189.26

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Solution

The fourth proportional to 133,783.38, 200,685.99 and 67,189.26 is: 100,789.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,783.38 : 200,685.99 = 67,189.26 : x
  2. Step 2: Convert to fraction form
    133,783.38/200,685.99 = 67,189.26/x
  3. Step 3: Cross multiply
    133,783.38x = 200,685.99 × 67,189.26
  4. Step 4: Simplify right side
    133,783.38x = 13,483,943,160.47
  5. Step 5: Solve for x
    x = 13,483,943,160.47/133,783.38
  6. Step 6: Final answer
    x = 100,789.37

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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.