Finding the Fourth Proportional to 167.67, 231.35 and 93.99
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Solution
The fourth proportional to 167.67, 231.35 and 93.99 is: 129.68
Step by Step Solution
- Step 1: Write the proportion equation
167.67 : 231.35 = 93.99 : x - Step 2: Convert to fraction form
167.67/231.35 = 93.99/x - Step 3: Cross multiply
167.67x = 231.35 × 93.99 - Step 4: Simplify right side
167.67x = 21,744.12 - Step 5: Solve for x
x = 21,744.12/167.67 - Step 6: Final answer
x = 129.68
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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.