Finding the Fourth Proportional to 171.62, 236.82 and 93.99
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Solution
The fourth proportional to 171.62, 236.82 and 93.99 is: 129.70
Step by Step Solution
- Step 1: Write the proportion equation
171.62 : 236.82 = 93.99 : x - Step 2: Convert to fraction form
171.62/236.82 = 93.99/x - Step 3: Cross multiply
171.62x = 236.82 × 93.99 - Step 4: Simplify right side
171.62x = 22,258.71 - Step 5: Solve for x
x = 22,258.71/171.62 - Step 6: Final answer
x = 129.70
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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.