Home / 100,781.56-150,941.94-48,227.96

Finding the Fourth Proportional to 100,781.56, 150,941.94 and 48,227.96

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Solution

The fourth proportional to 100,781.56, 150,941.94 and 48,227.96 is: 72,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,781.56 : 150,941.94 = 48,227.96 : x
  2. Step 2: Convert to fraction form
    100,781.56/150,941.94 = 48,227.96/x
  3. Step 3: Cross multiply
    100,781.56x = 150,941.94 × 48,227.96
  4. Step 4: Simplify right side
    100,781.56x = 7,279,621,844.64
  5. Step 5: Solve for x
    x = 7,279,621,844.64/100,781.56
  6. Step 6: Final answer
    x = 72,231.68

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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.