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Finding the Fourth Proportional to 188,121.02, 282,180.69 and 68,149.89

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Solution

The fourth proportional to 188,121.02, 282,180.69 and 68,149.89 is: 102,224.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,121.02 : 282,180.69 = 68,149.89 : x
  2. Step 2: Convert to fraction form
    188,121.02/282,180.69 = 68,149.89/x
  3. Step 3: Cross multiply
    188,121.02x = 282,180.69 × 68,149.89
  4. Step 4: Simplify right side
    188,121.02x = 19,230,582,983.62
  5. Step 5: Solve for x
    x = 19,230,582,983.62/188,121.02
  6. Step 6: Final answer
    x = 102,224.53

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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.