Home / 135,105.21-202,586.13-67,563.36

Finding the Fourth Proportional to 135,105.21, 202,586.13 and 67,563.36

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Solution

The fourth proportional to 135,105.21, 202,586.13 and 67,563.36 is: 101,309.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,105.21 : 202,586.13 = 67,563.36 : x
  2. Step 2: Convert to fraction form
    135,105.21/202,586.13 = 67,563.36/x
  3. Step 3: Cross multiply
    135,105.21x = 202,586.13 × 67,563.36
  4. Step 4: Simplify right side
    135,105.21x = 13,687,399,632.20
  5. Step 5: Solve for x
    x = 13,687,399,632.20/135,105.21
  6. Step 6: Final answer
    x = 101,309.19

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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.