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Finding the Fourth Proportional to 133,498.72, 200,131.44 and 66,845.44

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Solution

The fourth proportional to 133,498.72, 200,131.44 and 66,845.44 is: 100,209.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,498.72 : 200,131.44 = 66,845.44 : x
  2. Step 2: Convert to fraction form
    133,498.72/200,131.44 = 66,845.44/x
  3. Step 3: Cross multiply
    133,498.72x = 200,131.44 × 66,845.44
  4. Step 4: Simplify right side
    133,498.72x = 13,377,874,164.63
  5. Step 5: Solve for x
    x = 13,377,874,164.63/133,498.72
  6. Step 6: Final answer
    x = 100,209.76

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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.