Home / 99,181.20-148,771.80-25,309.20

Finding the Fourth Proportional to 99,181.20, 148,771.80 and 25,309.20

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Solution

The fourth proportional to 99,181.20, 148,771.80 and 25,309.20 is: 37,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,181.20 : 148,771.80 = 25,309.20 : x
  2. Step 2: Convert to fraction form
    99,181.20/148,771.80 = 25,309.20/x
  3. Step 3: Cross multiply
    99,181.20x = 148,771.80 × 25,309.20
  4. Step 4: Simplify right side
    99,181.20x = 3,765,295,240.56
  5. Step 5: Solve for x
    x = 3,765,295,240.56/99,181.20
  6. Step 6: Final answer
    x = 37,963.80

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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.