Home / 281,815.15-422,719.13-68,583.43

Finding the Fourth Proportional to 281,815.15, 422,719.13 and 68,583.43

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Solution

The fourth proportional to 281,815.15, 422,719.13 and 68,583.43 is: 102,874.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,815.15 : 422,719.13 = 68,583.43 : x
  2. Step 2: Convert to fraction form
    281,815.15/422,719.13 = 68,583.43/x
  3. Step 3: Cross multiply
    281,815.15x = 422,719.13 × 68,583.43
  4. Step 4: Simplify right side
    281,815.15x = 28,991,528,176.09
  5. Step 5: Solve for x
    x = 28,991,528,176.09/281,815.15
  6. Step 6: Final answer
    x = 102,874.27

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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.