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Finding the Fourth Proportional to 168,511.15, 252,696.43 and 68,603.50

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Solution

The fourth proportional to 168,511.15, 252,696.43 and 68,603.50 is: 102,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,511.15 : 252,696.43 = 68,603.50 : x
  2. Step 2: Convert to fraction form
    168,511.15/252,696.43 = 68,603.50/x
  3. Step 3: Cross multiply
    168,511.15x = 252,696.43 × 68,603.50
  4. Step 4: Simplify right side
    168,511.15x = 17,335,859,535.51
  5. Step 5: Solve for x
    x = 17,335,859,535.51/168,511.15
  6. Step 6: Final answer
    x = 102,876.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.