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Finding the Fourth Proportional to 133,332.39, 200,072.39 and 79,893.09

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Solution

The fourth proportional to 133,332.39, 200,072.39 and 79,893.09 is: 119,883.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,332.39 : 200,072.39 = 79,893.09 : x
  2. Step 2: Convert to fraction form
    133,332.39/200,072.39 = 79,893.09/x
  3. Step 3: Cross multiply
    133,332.39x = 200,072.39 × 79,893.09
  4. Step 4: Simplify right side
    133,332.39x = 15,984,401,061.32
  5. Step 5: Solve for x
    x = 15,984,401,061.32/133,332.39
  6. Step 6: Final answer
    x = 119,883.86

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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.