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Finding the Fourth Proportional to 133,691.85, 200,543.79 and 43,739.69

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Solution

The fourth proportional to 133,691.85, 200,543.79 and 43,739.69 is: 65,611.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,691.85 : 200,543.79 = 43,739.69 : x
  2. Step 2: Convert to fraction form
    133,691.85/200,543.79 = 43,739.69/x
  3. Step 3: Cross multiply
    133,691.85x = 200,543.79 × 43,739.69
  4. Step 4: Simplify right side
    133,691.85x = 8,771,723,206.03
  5. Step 5: Solve for x
    x = 8,771,723,206.03/133,691.85
  6. Step 6: Final answer
    x = 65,611.50

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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.