Home / 108,729.56-163,163.64-49,571.12

Finding the Fourth Proportional to 108,729.56, 163,163.64 and 49,571.12

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Solution

The fourth proportional to 108,729.56, 163,163.64 and 49,571.12 is: 74,388.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,729.56 : 163,163.64 = 49,571.12 : x
  2. Step 2: Convert to fraction form
    108,729.56/163,163.64 = 49,571.12/x
  3. Step 3: Cross multiply
    108,729.56x = 163,163.64 × 49,571.12
  4. Step 4: Simplify right side
    108,729.56x = 8,088,204,378.08
  5. Step 5: Solve for x
    x = 8,088,204,378.08/108,729.56
  6. Step 6: Final answer
    x = 74,388.27

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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.