Home / 133,380.81-199,997.38-54,550.39

Finding the Fourth Proportional to 133,380.81, 199,997.38 and 54,550.39

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Solution

The fourth proportional to 133,380.81, 199,997.38 and 54,550.39 is: 81,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,380.81 : 199,997.38 = 54,550.39 : x
  2. Step 2: Convert to fraction form
    133,380.81/199,997.38 = 54,550.39/x
  3. Step 3: Cross multiply
    133,380.81x = 199,997.38 × 54,550.39
  4. Step 4: Simplify right side
    133,380.81x = 10,909,934,805.23
  5. Step 5: Solve for x
    x = 10,909,934,805.23/133,380.81
  6. Step 6: Final answer
    x = 81,795.39

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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.