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Finding the Fourth Proportional to 133,859.43, 200,789.83 and 45,113.70

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Solution

The fourth proportional to 133,859.43, 200,789.83 and 45,113.70 is: 67,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,859.43 : 200,789.83 = 45,113.70 : x
  2. Step 2: Convert to fraction form
    133,859.43/200,789.83 = 45,113.70/x
  3. Step 3: Cross multiply
    133,859.43x = 200,789.83 × 45,113.70
  4. Step 4: Simplify right side
    133,859.43x = 9,058,372,226.18
  5. Step 5: Solve for x
    x = 9,058,372,226.18/133,859.43
  6. Step 6: Final answer
    x = 67,670.78

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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.