Finding the Fourth Proportional to 108.96, 163.14 and 88.68
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Solution
The fourth proportional to 108.96, 163.14 and 88.68 is: 132.78
Step by Step Solution
- Step 1: Write the proportion equation
108.96 : 163.14 = 88.68 : x - Step 2: Convert to fraction form
108.96/163.14 = 88.68/x - Step 3: Cross multiply
108.96x = 163.14 × 88.68 - Step 4: Simplify right side
108.96x = 14,467.26 - Step 5: Solve for x
x = 14,467.26/108.96 - Step 6: Final answer
x = 132.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.