Home / 281,721.85-422,673.09-82,054.23

Finding the Fourth Proportional to 281,721.85, 422,673.09 and 82,054.23

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Solution

The fourth proportional to 281,721.85, 422,673.09 and 82,054.23 is: 123,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,721.85 : 422,673.09 = 82,054.23 : x
  2. Step 2: Convert to fraction form
    281,721.85/422,673.09 = 82,054.23/x
  3. Step 3: Cross multiply
    281,721.85x = 422,673.09 × 82,054.23
  4. Step 4: Simplify right side
    281,721.85x = 34,682,114,941.67
  5. Step 5: Solve for x
    x = 34,682,114,941.67/281,721.85
  6. Step 6: Final answer
    x = 123,107.65

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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.