Home / 285,634.33-428,511.57-108,137.41

Finding the Fourth Proportional to 285,634.33, 428,511.57 and 108,137.41

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Solution

The fourth proportional to 285,634.33, 428,511.57 and 108,137.41 is: 162,228.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,634.33 : 428,511.57 = 108,137.41 : x
  2. Step 2: Convert to fraction form
    285,634.33/428,511.57 = 108,137.41/x
  3. Step 3: Cross multiply
    285,634.33x = 428,511.57 × 108,137.41
  4. Step 4: Simplify right side
    285,634.33x = 46,338,131,334.83
  5. Step 5: Solve for x
    x = 46,338,131,334.83/285,634.33
  6. Step 6: Final answer
    x = 162,228.86

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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.