Finding the Fourth Proportional to 135.62, 201.92 and 133.70
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Solution
The fourth proportional to 135.62, 201.92 and 133.70 is: 199.06
Step by Step Solution
- Step 1: Write the proportion equation
135.62 : 201.92 = 133.70 : x - Step 2: Convert to fraction form
135.62/201.92 = 133.70/x - Step 3: Cross multiply
135.62x = 201.92 × 133.70 - Step 4: Simplify right side
135.62x = 26,996.70 - Step 5: Solve for x
x = 26,996.70/135.62 - Step 6: Final answer
x = 199.06
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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.