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Finding the Fourth Proportional to 100,485.28, 150,726.36 and 33,972.12

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Solution

The fourth proportional to 100,485.28, 150,726.36 and 33,972.12 is: 50,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,485.28 : 150,726.36 = 33,972.12 : x
  2. Step 2: Convert to fraction form
    100,485.28/150,726.36 = 33,972.12/x
  3. Step 3: Cross multiply
    100,485.28x = 150,726.36 × 33,972.12
  4. Step 4: Simplify right side
    100,485.28x = 5,120,493,989.08
  5. Step 5: Solve for x
    x = 5,120,493,989.08/100,485.28
  6. Step 6: Final answer
    x = 50,957.65

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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.