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Finding the Fourth Proportional to 68,107.30, 101,966.55 and 66,163.30

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Solution

The fourth proportional to 68,107.30, 101,966.55 and 66,163.30 is: 99,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,107.30 : 101,966.55 = 66,163.30 : x
  2. Step 2: Convert to fraction form
    68,107.30/101,966.55 = 66,163.30/x
  3. Step 3: Cross multiply
    68,107.30x = 101,966.55 × 66,163.30
  4. Step 4: Simplify right side
    68,107.30x = 6,746,443,437.62
  5. Step 5: Solve for x
    x = 6,746,443,437.62/68,107.30
  6. Step 6: Final answer
    x = 99,056.10

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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.