Finding the Fourth Proportional to 160.13, 220.98 and 101.99
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Solution
The fourth proportional to 160.13, 220.98 and 101.99 is: 140.74
Step by Step Solution
- Step 1: Write the proportion equation
160.13 : 220.98 = 101.99 : x - Step 2: Convert to fraction form
160.13/220.98 = 101.99/x - Step 3: Cross multiply
160.13x = 220.98 × 101.99 - Step 4: Simplify right side
160.13x = 22,536.14 - Step 5: Solve for x
x = 22,536.14/160.13 - Step 6: Final answer
x = 140.74
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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.