Finding the Fourth Proportional to 118.44, 163.08 and 97.65
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Solution
The fourth proportional to 118.44, 163.08 and 97.65 is: 134.45
Step by Step Solution
- Step 1: Write the proportion equation
118.44 : 163.08 = 97.65 : x - Step 2: Convert to fraction form
118.44/163.08 = 97.65/x - Step 3: Cross multiply
118.44x = 163.08 × 97.65 - Step 4: Simplify right side
118.44x = 15,924.76 - Step 5: Solve for x
x = 15,924.76/118.44 - Step 6: Final answer
x = 134.45
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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.