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Finding the Fourth Proportional to 98,065.92, 135,338.88 and 82,122.96

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Solution

The fourth proportional to 98,065.92, 135,338.88 and 82,122.96 is: 113,336.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,065.92 : 135,338.88 = 82,122.96 : x
  2. Step 2: Convert to fraction form
    98,065.92/135,338.88 = 82,122.96/x
  3. Step 3: Cross multiply
    98,065.92x = 135,338.88 × 82,122.96
  4. Step 4: Simplify right side
    98,065.92x = 11,114,429,428.68
  5. Step 5: Solve for x
    x = 11,114,429,428.68/98,065.92
  6. Step 6: Final answer
    x = 113,336.31

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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.