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Finding the Fourth Proportional to 133,689.85, 200,540.79 and 43,737.69

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Solution

The fourth proportional to 133,689.85, 200,540.79 and 43,737.69 is: 65,608.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,689.85 : 200,540.79 = 43,737.69 : x
  2. Step 2: Convert to fraction form
    133,689.85/200,540.79 = 43,737.69/x
  3. Step 3: Cross multiply
    133,689.85x = 200,540.79 × 43,737.69
  4. Step 4: Simplify right side
    133,689.85x = 8,771,190,905.38
  5. Step 5: Solve for x
    x = 8,771,190,905.38/133,689.85
  6. Step 6: Final answer
    x = 65,608.50

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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.