Finding the Fourth Proportional to 132.09, 198.26 and 107.99
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Solution
The fourth proportional to 132.09, 198.26 and 107.99 is: 162.09
Step by Step Solution
- Step 1: Write the proportion equation
132.09 : 198.26 = 107.99 : x - Step 2: Convert to fraction form
132.09/198.26 = 107.99/x - Step 3: Cross multiply
132.09x = 198.26 × 107.99 - Step 4: Simplify right side
132.09x = 21,409.71 - Step 5: Solve for x
x = 21,409.71/132.09 - Step 6: Final answer
x = 162.09
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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.