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Finding the Fourth Proportional to 68,150.17, 102,241.65 and 28,718.56

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Solution

The fourth proportional to 68,150.17, 102,241.65 and 28,718.56 is: 43,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,150.17 : 102,241.65 = 28,718.56 : x
  2. Step 2: Convert to fraction form
    68,150.17/102,241.65 = 28,718.56/x
  3. Step 3: Cross multiply
    68,150.17x = 102,241.65 × 28,718.56
  4. Step 4: Simplify right side
    68,150.17x = 2,936,232,960.02
  5. Step 5: Solve for x
    x = 2,936,232,960.02/68,150.17
  6. Step 6: Final answer
    x = 43,084.75

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1.5x scale

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.