Home / 100,782.26-151,195.26-30,659.75

Finding the Fourth Proportional to 100,782.26, 151,195.26 and 30,659.75

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Solution

The fourth proportional to 100,782.26, 151,195.26 and 30,659.75 is: 45,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,782.26 : 151,195.26 = 30,659.75 : x
  2. Step 2: Convert to fraction form
    100,782.26/151,195.26 = 30,659.75/x
  3. Step 3: Cross multiply
    100,782.26x = 151,195.26 × 30,659.75
  4. Step 4: Simplify right side
    100,782.26x = 4,635,608,872.79
  5. Step 5: Solve for x
    x = 4,635,608,872.79/100,782.26
  6. Step 6: Final answer
    x = 45,996.28

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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.