Home / 100,987.38-151,443.20-33,507.02

Finding the Fourth Proportional to 100,987.38, 151,443.20 and 33,507.02

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Solution

The fourth proportional to 100,987.38, 151,443.20 and 33,507.02 is: 50,247.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,987.38 : 151,443.20 = 33,507.02 : x
  2. Step 2: Convert to fraction form
    100,987.38/151,443.20 = 33,507.02/x
  3. Step 3: Cross multiply
    100,987.38x = 151,443.20 × 33,507.02
  4. Step 4: Simplify right side
    100,987.38x = 5,074,410,793.64
  5. Step 5: Solve for x
    x = 5,074,410,793.64/100,987.38
  6. Step 6: Final answer
    x = 50,247.97

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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.