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Finding the Fourth Proportional to 172,747.94, 259,162.88 and 54,418.95

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Solution

The fourth proportional to 172,747.94, 259,162.88 and 54,418.95 is: 81,641.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,747.94 : 259,162.88 = 54,418.95 : x
  2. Step 2: Convert to fraction form
    172,747.94/259,162.88 = 54,418.95/x
  3. Step 3: Cross multiply
    172,747.94x = 259,162.88 × 54,418.95
  4. Step 4: Simplify right side
    172,747.94x = 14,103,371,536.48
  5. Step 5: Solve for x
    x = 14,103,371,536.48/172,747.94
  6. Step 6: Final answer
    x = 81,641.33

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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.