Finding the Fourth Proportional to 118.24, 163.19 and 70.96
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Solution
The fourth proportional to 118.24, 163.19 and 70.96 is: 97.94
Step by Step Solution
- Step 1: Write the proportion equation
118.24 : 163.19 = 70.96 : x - Step 2: Convert to fraction form
118.24/163.19 = 70.96/x - Step 3: Cross multiply
118.24x = 163.19 × 70.96 - Step 4: Simplify right side
118.24x = 11,580.18 - Step 5: Solve for x
x = 11,580.18/118.24 - Step 6: Final answer
x = 97.94
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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.