Finding the Fourth Proportional to 160.75, 221.93 and 122.01
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Solution
The fourth proportional to 160.75, 221.93 and 122.01 is: 168.45
Step by Step Solution
- Step 1: Write the proportion equation
160.75 : 221.93 = 122.01 : x - Step 2: Convert to fraction form
160.75/221.93 = 122.01/x - Step 3: Cross multiply
160.75x = 221.93 × 122.01 - Step 4: Simplify right side
160.75x = 27,077.68 - Step 5: Solve for x
x = 27,077.68/160.75 - Step 6: Final answer
x = 168.45
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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.