Home / 99,813.07-137,735.85-54,481.80

Finding the Fourth Proportional to 99,813.07, 137,735.85 and 54,481.80

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Solution

The fourth proportional to 99,813.07, 137,735.85 and 54,481.80 is: 75,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,813.07 : 137,735.85 = 54,481.80 : x
  2. Step 2: Convert to fraction form
    99,813.07/137,735.85 = 54,481.80/x
  3. Step 3: Cross multiply
    99,813.07x = 137,735.85 × 54,481.80
  4. Step 4: Simplify right side
    99,813.07x = 7,504,097,753.35
  5. Step 5: Solve for x
    x = 7,504,097,753.35/99,813.07
  6. Step 6: Final answer
    x = 75,181.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.