Home / 117,198.21-161,627.22-76,896.66

Finding the Fourth Proportional to 117,198.21, 161,627.22 and 76,896.66

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Solution

The fourth proportional to 117,198.21, 161,627.22 and 76,896.66 is: 106,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,198.21 : 161,627.22 = 76,896.66 : x
  2. Step 2: Convert to fraction form
    117,198.21/161,627.22 = 76,896.66/x
  3. Step 3: Cross multiply
    117,198.21x = 161,627.22 × 76,896.66
  4. Step 4: Simplify right side
    117,198.21x = 12,428,593,383.09
  5. Step 5: Solve for x
    x = 12,428,593,383.09/117,198.21
  6. Step 6: Final answer
    x = 106,047.64

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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.