Finding the Fourth Proportional to 160.14, 220.99 and 120.73
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Solution
The fourth proportional to 160.14, 220.99 and 120.73 is: 166.60
Step by Step Solution
- Step 1: Write the proportion equation
160.14 : 220.99 = 120.73 : x - Step 2: Convert to fraction form
160.14/220.99 = 120.73/x - Step 3: Cross multiply
160.14x = 220.99 × 120.73 - Step 4: Simplify right side
160.14x = 26,680.12 - Step 5: Solve for x
x = 26,680.12/160.14 - Step 6: Final answer
x = 166.60
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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.