Home / 281,942.85-422,961.68-139,795.14

Finding the Fourth Proportional to 281,942.85, 422,961.68 and 139,795.14

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Solution

The fourth proportional to 281,942.85, 422,961.68 and 139,795.14 is: 209,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,942.85 : 422,961.68 = 139,795.14 : x
  2. Step 2: Convert to fraction form
    281,942.85/422,961.68 = 139,795.14/x
  3. Step 3: Cross multiply
    281,942.85x = 422,961.68 × 139,795.14
  4. Step 4: Simplify right side
    281,942.85x = 59,127,987,270.24
  5. Step 5: Solve for x
    x = 59,127,987,270.24/281,942.85
  6. Step 6: Final answer
    x = 209,716.21

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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.