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Finding the Fourth Proportional to 133,310.37, 200,039.37 and 79,871.03

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Solution

The fourth proportional to 133,310.37, 200,039.37 and 79,871.03 is: 119,850.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,310.37 : 200,039.37 = 79,871.03 : x
  2. Step 2: Convert to fraction form
    133,310.37/200,039.37 = 79,871.03/x
  3. Step 3: Cross multiply
    133,310.37x = 200,039.37 × 79,871.03
  4. Step 4: Simplify right side
    133,310.37x = 15,977,349,122.90
  5. Step 5: Solve for x
    x = 15,977,349,122.90/133,310.37
  6. Step 6: Final answer
    x = 119,850.76

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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.