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Finding the Fourth Proportional to 133,310.62, 200,039.74 and 79,871.27

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Solution

The fourth proportional to 133,310.62, 200,039.74 and 79,871.27 is: 119,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,310.62 : 200,039.74 = 79,871.27 : x
  2. Step 2: Convert to fraction form
    133,310.62/200,039.74 = 79,871.27/x
  3. Step 3: Cross multiply
    133,310.62x = 200,039.74 × 79,871.27
  4. Step 4: Simplify right side
    133,310.62x = 15,977,428,384.69
  5. Step 5: Solve for x
    x = 15,977,428,384.69/133,310.62
  6. Step 6: Final answer
    x = 119,851.13

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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.