Finding the Fourth Proportional to 135.23, 186.57 and 79.97
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Solution
The fourth proportional to 135.23, 186.57 and 79.97 is: 110.33
Step by Step Solution
- Step 1: Write the proportion equation
135.23 : 186.57 = 79.97 : x - Step 2: Convert to fraction form
135.23/186.57 = 79.97/x - Step 3: Cross multiply
135.23x = 186.57 × 79.97 - Step 4: Simplify right side
135.23x = 14,919.07 - Step 5: Solve for x
x = 14,919.07/135.23 - Step 6: Final answer
x = 110.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.