Finding the Fourth Proportional to 160.11, 220.97 and 97.95
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Solution
The fourth proportional to 160.11, 220.97 and 97.95 is: 135.18
Step by Step Solution
- Step 1: Write the proportion equation
160.11 : 220.97 = 97.95 : x - Step 2: Convert to fraction form
160.11/220.97 = 97.95/x - Step 3: Cross multiply
160.11x = 220.97 × 97.95 - Step 4: Simplify right side
160.11x = 21,643.84 - Step 5: Solve for x
x = 21,643.84/160.11 - Step 6: Final answer
x = 135.18
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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.