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Finding the Fourth Proportional to 68,797.14, 103,184.62 and 18,865.64

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Solution

The fourth proportional to 68,797.14, 103,184.62 and 18,865.64 is: 28,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,797.14 : 103,184.62 = 18,865.64 : x
  2. Step 2: Convert to fraction form
    68,797.14/103,184.62 = 18,865.64/x
  3. Step 3: Cross multiply
    68,797.14x = 103,184.62 × 18,865.64
  4. Step 4: Simplify right side
    68,797.14x = 1,946,643,894.46
  5. Step 5: Solve for x
    x = 1,946,643,894.46/68,797.14
  6. Step 6: Final answer
    x = 28,295.42

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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.