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Finding the Fourth Proportional to 68,754, 103,131 and 19,506

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Solution

The fourth proportional to 68,754, 103,131 and 19,506 is: 29,259

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,754 : 103,131 = 19,506 : x
  2. Step 2: Convert to fraction form
    68,754/103,131 = 19,506/x
  3. Step 3: Cross multiply
    68,754x = 103,131 × 19,506
  4. Step 4: Simplify right side
    68,754x = 2,011,673,286
  5. Step 5: Solve for x
    x = 2,011,673,286/68,754
  6. Step 6: Final answer
    x = 29,259

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.