Finding the Fourth Proportional to 132.68, 199.10 and 74.95
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Solution
The fourth proportional to 132.68, 199.10 and 74.95 is: 112.47
Step by Step Solution
- Step 1: Write the proportion equation
132.68 : 199.10 = 74.95 : x - Step 2: Convert to fraction form
132.68/199.10 = 74.95/x - Step 3: Cross multiply
132.68x = 199.10 × 74.95 - Step 4: Simplify right side
132.68x = 14,922.23 - Step 5: Solve for x
x = 14,922.23/132.68 - Step 6: Final answer
x = 112.47
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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.