Finding the Fourth Proportional to 118.23, 163.19 and 69.14
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Solution
The fourth proportional to 118.23, 163.19 and 69.14 is: 95.43
Step by Step Solution
- Step 1: Write the proportion equation
118.23 : 163.19 = 69.14 : x - Step 2: Convert to fraction form
118.23/163.19 = 69.14/x - Step 3: Cross multiply
118.23x = 163.19 × 69.14 - Step 4: Simplify right side
118.23x = 11,282.96 - Step 5: Solve for x
x = 11,282.96/118.23 - Step 6: Final answer
x = 95.43
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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.