Finding the Fourth Proportional to 133.38, 198.99 and 113.14
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Solution
The fourth proportional to 133.38, 198.99 and 113.14 is: 168.79
Step by Step Solution
- Step 1: Write the proportion equation
133.38 : 198.99 = 113.14 : x - Step 2: Convert to fraction form
133.38/198.99 = 113.14/x - Step 3: Cross multiply
133.38x = 198.99 × 113.14 - Step 4: Simplify right side
133.38x = 22,513.73 - Step 5: Solve for x
x = 22,513.73/133.38 - Step 6: Final answer
x = 168.79
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.