Finding the Fourth Proportional to 132.68, 199.43 and 108.79
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Solution
The fourth proportional to 132.68, 199.43 and 108.79 is: 163.52
Step by Step Solution
- Step 1: Write the proportion equation
132.68 : 199.43 = 108.79 : x - Step 2: Convert to fraction form
132.68/199.43 = 108.79/x - Step 3: Cross multiply
132.68x = 199.43 × 108.79 - Step 4: Simplify right side
132.68x = 21,695.99 - Step 5: Solve for x
x = 21,695.99/132.68 - Step 6: Final answer
x = 163.52
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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.