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Finding the Fourth Proportional to 199,996.93, 300,078.77 and 87,757.82

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Solution

The fourth proportional to 199,996.93, 300,078.77 and 87,757.82 is: 131,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,996.93 : 300,078.77 = 87,757.82 : x
  2. Step 2: Convert to fraction form
    199,996.93/300,078.77 = 87,757.82/x
  3. Step 3: Cross multiply
    199,996.93x = 300,078.77 × 87,757.82
  4. Step 4: Simplify right side
    199,996.93x = 26,334,258,683.48
  5. Step 5: Solve for x
    x = 26,334,258,683.48/199,996.93
  6. Step 6: Final answer
    x = 131,673.31

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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.