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Finding the Fourth Proportional to 187,779, 259,135.02 and 108,291

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Solution

The fourth proportional to 187,779, 259,135.02 and 108,291 is: 149,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,779 : 259,135.02 = 108,291 : x
  2. Step 2: Convert to fraction form
    187,779/259,135.02 = 108,291/x
  3. Step 3: Cross multiply
    187,779x = 259,135.02 × 108,291
  4. Step 4: Simplify right side
    187,779x = 28,061,990,450.82
  5. Step 5: Solve for x
    x = 28,061,990,450.82/187,779
  6. Step 6: Final answer
    x = 149,441.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.