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Finding the Fourth Proportional to 68,896.34, 103,342.08 and 22,148

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Solution

The fourth proportional to 68,896.34, 103,342.08 and 22,148 is: 33,221.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,896.34 : 103,342.08 = 22,148 : x
  2. Step 2: Convert to fraction form
    68,896.34/103,342.08 = 22,148/x
  3. Step 3: Cross multiply
    68,896.34x = 103,342.08 × 22,148
  4. Step 4: Simplify right side
    68,896.34x = 2,288,820,387.84
  5. Step 5: Solve for x
    x = 2,288,820,387.84/68,896.34
  6. Step 6: Final answer
    x = 33,221.22

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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.