Finding the Fourth Proportional to 163.60, 225.75 and 93.68
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Solution
The fourth proportional to 163.60, 225.75 and 93.68 is: 129.27
Step by Step Solution
- Step 1: Write the proportion equation
163.60 : 225.75 = 93.68 : x - Step 2: Convert to fraction form
163.60/225.75 = 93.68/x - Step 3: Cross multiply
163.60x = 225.75 × 93.68 - Step 4: Simplify right side
163.60x = 21,148.26 - Step 5: Solve for x
x = 21,148.26/163.60 - Step 6: Final answer
x = 129.27
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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.