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Finding the Fourth Proportional to 117,481.56, 162,085.96 and 66,489.24

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Solution

The fourth proportional to 117,481.56, 162,085.96 and 66,489.24 is: 91,733.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,481.56 : 162,085.96 = 66,489.24 : x
  2. Step 2: Convert to fraction form
    117,481.56/162,085.96 = 66,489.24/x
  3. Step 3: Cross multiply
    117,481.56x = 162,085.96 × 66,489.24
  4. Step 4: Simplify right side
    117,481.56x = 10,776,972,295.07
  5. Step 5: Solve for x
    x = 10,776,972,295.07/117,481.56
  6. Step 6: Final answer
    x = 91,733.31

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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.