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Finding the Fourth Proportional to 117,351.09, 161,943.09 and 63,635.47

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Solution

The fourth proportional to 117,351.09, 161,943.09 and 63,635.47 is: 87,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,351.09 : 161,943.09 = 63,635.47 : x
  2. Step 2: Convert to fraction form
    117,351.09/161,943.09 = 63,635.47/x
  3. Step 3: Cross multiply
    117,351.09x = 161,943.09 × 63,635.47
  4. Step 4: Simplify right side
    117,351.09x = 10,305,324,645.40
  5. Step 5: Solve for x
    x = 10,305,324,645.40/117,351.09
  6. Step 6: Final answer
    x = 87,816.18

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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.