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Finding the Fourth Proportional to 133,685.50, 200,540.61 and 43,728.72

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Solution

The fourth proportional to 133,685.50, 200,540.61 and 43,728.72 is: 65,597.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,685.50 : 200,540.61 = 43,728.72 : x
  2. Step 2: Convert to fraction form
    133,685.50/200,540.61 = 43,728.72/x
  3. Step 3: Cross multiply
    133,685.50x = 200,540.61 × 43,728.72
  4. Step 4: Simplify right side
    133,685.50x = 8,769,384,183.32
  5. Step 5: Solve for x
    x = 8,769,384,183.32/133,685.50
  6. Step 6: Final answer
    x = 65,597.12

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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.