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Finding the Fourth Proportional to 100,170.72, 150,264.27 and 33,611.40

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Solution

The fourth proportional to 100,170.72, 150,264.27 and 33,611.40 is: 50,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,170.72 : 150,264.27 = 33,611.40 : x
  2. Step 2: Convert to fraction form
    100,170.72/150,264.27 = 33,611.40/x
  3. Step 3: Cross multiply
    100,170.72x = 150,264.27 × 33,611.40
  4. Step 4: Simplify right side
    100,170.72x = 5,050,592,484.68
  5. Step 5: Solve for x
    x = 5,050,592,484.68/100,170.72
  6. Step 6: Final answer
    x = 50,419.85

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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.