Home / 99,556.25-149,356.23-73,181.03

Finding the Fourth Proportional to 99,556.25, 149,356.23 and 73,181.03

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Solution

The fourth proportional to 99,556.25, 149,356.23 and 73,181.03 is: 109,787.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,556.25 : 149,356.23 = 73,181.03 : x
  2. Step 2: Convert to fraction form
    99,556.25/149,356.23 = 73,181.03/x
  3. Step 3: Cross multiply
    99,556.25x = 149,356.23 × 73,181.03
  4. Step 4: Simplify right side
    99,556.25x = 10,930,042,748.32
  5. Step 5: Solve for x
    x = 10,930,042,748.32/99,556.25
  6. Step 6: Final answer
    x = 109,787.61

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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.