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Finding the Fourth Proportional to 100,189.25, 150,227.57 and 68,634.89

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Solution

The fourth proportional to 100,189.25, 150,227.57 and 68,634.89 is: 102,913.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,189.25 : 150,227.57 = 68,634.89 : x
  2. Step 2: Convert to fraction form
    100,189.25/150,227.57 = 68,634.89/x
  3. Step 3: Cross multiply
    100,189.25x = 150,227.57 × 68,634.89
  4. Step 4: Simplify right side
    100,189.25x = 10,310,851,647.61
  5. Step 5: Solve for x
    x = 10,310,851,647.61/100,189.25
  6. Step 6: Final answer
    x = 102,913.76

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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.