Finding the Fourth Proportional to 119,914.05, 165,481.98 and 66,198.09
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Solution
The fourth proportional to 119,914.05, 165,481.98 and 66,198.09 is: 91,353.69
Step by Step Solution
- Step 1: Write the proportion equation
119,914.05 : 165,481.98 = 66,198.09 : x - Step 2: Convert to fraction form
119,914.05/165,481.98 = 66,198.09/x - Step 3: Cross multiply
119,914.05x = 165,481.98 × 66,198.09 - Step 4: Simplify right side
119,914.05x = 10,954,591,005.42 - Step 5: Solve for x
x = 10,954,591,005.42/119,914.05 - Step 6: Final answer
x = 91,353.69
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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.