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Finding the Fourth Proportional to 100,487.88, 150,625.26 and 47,134.80

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Solution

The fourth proportional to 100,487.88, 150,625.26 and 47,134.80 is: 70,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,487.88 : 150,625.26 = 47,134.80 : x
  2. Step 2: Convert to fraction form
    100,487.88/150,625.26 = 47,134.80/x
  3. Step 3: Cross multiply
    100,487.88x = 150,625.26 × 47,134.80
  4. Step 4: Simplify right side
    100,487.88x = 7,099,691,505.05
  5. Step 5: Solve for x
    x = 7,099,691,505.05/100,487.88
  6. Step 6: Final answer
    x = 70,652.22

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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.