Home / 192,942.36-289,442.70-68,273.64

Finding the Fourth Proportional to 192,942.36, 289,442.70 and 68,273.64

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Solution

The fourth proportional to 192,942.36, 289,442.70 and 68,273.64 is: 102,420.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,942.36 : 289,442.70 = 68,273.64 : x
  2. Step 2: Convert to fraction form
    192,942.36/289,442.70 = 68,273.64/x
  3. Step 3: Cross multiply
    192,942.36x = 289,442.70 × 68,273.64
  4. Step 4: Simplify right side
    192,942.36x = 19,761,306,700.43
  5. Step 5: Solve for x
    x = 19,761,306,700.43/192,942.36
  6. Step 6: Final answer
    x = 102,420.78

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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.