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Finding the Fourth Proportional to 100,125.80, 150,164.96 and 36,911.57

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Solution

The fourth proportional to 100,125.80, 150,164.96 and 36,911.57 is: 55,358.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,125.80 : 150,164.96 = 36,911.57 : x
  2. Step 2: Convert to fraction form
    100,125.80/150,164.96 = 36,911.57/x
  3. Step 3: Cross multiply
    100,125.80x = 150,164.96 × 36,911.57
  4. Step 4: Simplify right side
    100,125.80x = 5,542,824,432.59
  5. Step 5: Solve for x
    x = 5,542,824,432.59/100,125.80
  6. Step 6: Final answer
    x = 55,358.61

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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.