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Finding the Fourth Proportional to 68,118.50, 102,817.56 and 68,118.50

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Solution

The fourth proportional to 68,118.50, 102,817.56 and 68,118.50 is: 102,817.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,118.50 : 102,817.56 = 68,118.50 : x
  2. Step 2: Convert to fraction form
    68,118.50/102,817.56 = 68,118.50/x
  3. Step 3: Cross multiply
    68,118.50x = 102,817.56 × 68,118.50
  4. Step 4: Simplify right side
    68,118.50x = 7,003,777,960.86
  5. Step 5: Solve for x
    x = 7,003,777,960.86/68,118.50
  6. Step 6: Final answer
    x = 102,817.56

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.