Home / 281,747.15-422,689.88-82,069.39

Finding the Fourth Proportional to 281,747.15, 422,689.88 and 82,069.39

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Solution

The fourth proportional to 281,747.15, 422,689.88 and 82,069.39 is: 123,124.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,747.15 : 422,689.88 = 82,069.39 : x
  2. Step 2: Convert to fraction form
    281,747.15/422,689.88 = 82,069.39/x
  3. Step 3: Cross multiply
    281,747.15x = 422,689.88 × 82,069.39
  4. Step 4: Simplify right side
    281,747.15x = 34,689,900,610.77
  5. Step 5: Solve for x
    x = 34,689,900,610.77/281,747.15
  6. Step 6: Final answer
    x = 123,124.23

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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.