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Finding the Fourth Proportional to 68,676.12, 102,992.34 and 64,193.26

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Solution

The fourth proportional to 68,676.12, 102,992.34 and 64,193.26 is: 96,269.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.12 : 102,992.34 = 64,193.26 : x
  2. Step 2: Convert to fraction form
    68,676.12/102,992.34 = 64,193.26/x
  3. Step 3: Cross multiply
    68,676.12x = 102,992.34 × 64,193.26
  4. Step 4: Simplify right side
    68,676.12x = 6,611,413,223.70
  5. Step 5: Solve for x
    x = 6,611,413,223.70/68,676.12
  6. Step 6: Final answer
    x = 96,269.47

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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.