Finding the Fourth Proportional to 118.19, 163.10 and 69.08
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Solution
The fourth proportional to 118.19, 163.10 and 69.08 is: 95.32
Step by Step Solution
- Step 1: Write the proportion equation
118.19 : 163.10 = 69.08 : x - Step 2: Convert to fraction form
118.19/163.10 = 69.08/x - Step 3: Cross multiply
118.19x = 163.10 × 69.08 - Step 4: Simplify right side
118.19x = 11,265.79 - Step 5: Solve for x
x = 11,265.79/118.19 - Step 6: Final answer
x = 95.32
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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.