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Finding the Fourth Proportional to 181,161.40, 271,806.90 and 76,012.60

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Solution

The fourth proportional to 181,161.40, 271,806.90 and 76,012.60 is: 114,046.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,161.40 : 271,806.90 = 76,012.60 : x
  2. Step 2: Convert to fraction form
    181,161.40/271,806.90 = 76,012.60/x
  3. Step 3: Cross multiply
    181,161.40x = 271,806.90 × 76,012.60
  4. Step 4: Simplify right side
    181,161.40x = 20,660,749,166.94
  5. Step 5: Solve for x
    x = 20,660,749,166.94/181,161.40
  6. Step 6: Final answer
    x = 114,046.09

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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.