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Finding the Fourth Proportional to 88,511.68, 122,265.48 and 82,213.12

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Solution

The fourth proportional to 88,511.68, 122,265.48 and 82,213.12 is: 113,564.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,511.68 : 122,265.48 = 82,213.12 : x
  2. Step 2: Convert to fraction form
    88,511.68/122,265.48 = 82,213.12/x
  3. Step 3: Cross multiply
    88,511.68x = 122,265.48 × 82,213.12
  4. Step 4: Simplify right side
    88,511.68x = 10,051,826,579.10
  5. Step 5: Solve for x
    x = 10,051,826,579.10/88,511.68
  6. Step 6: Final answer
    x = 113,564.97

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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.