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Finding the Fourth Proportional to 100,515.62, 150,774.60 and 25,635.62

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Solution

The fourth proportional to 100,515.62, 150,774.60 and 25,635.62 is: 38,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,515.62 : 150,774.60 = 25,635.62 : x
  2. Step 2: Convert to fraction form
    100,515.62/150,774.60 = 25,635.62/x
  3. Step 3: Cross multiply
    100,515.62x = 150,774.60 × 25,635.62
  4. Step 4: Simplify right side
    100,515.62x = 3,865,200,351.25
  5. Step 5: Solve for x
    x = 3,865,200,351.25/100,515.62
  6. Step 6: Final answer
    x = 38,453.73

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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.