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Finding the Fourth Proportional to 133,740.05, 200,640.83 and 43,785.66

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Solution

The fourth proportional to 133,740.05, 200,640.83 and 43,785.66 is: 65,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,740.05 : 200,640.83 = 43,785.66 : x
  2. Step 2: Convert to fraction form
    133,740.05/200,640.83 = 43,785.66/x
  3. Step 3: Cross multiply
    133,740.05x = 200,640.83 × 43,785.66
  4. Step 4: Simplify right side
    133,740.05x = 8,785,190,945.57
  5. Step 5: Solve for x
    x = 8,785,190,945.57/133,740.05
  6. Step 6: Final answer
    x = 65,688.56

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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.