Finding the Fourth Proportional to 108.92, 163.40 and 47.99
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Solution
The fourth proportional to 108.92, 163.40 and 47.99 is: 71.99
Step by Step Solution
- Step 1: Write the proportion equation
108.92 : 163.40 = 47.99 : x - Step 2: Convert to fraction form
108.92/163.40 = 47.99/x - Step 3: Cross multiply
108.92x = 163.40 × 47.99 - Step 4: Simplify right side
108.92x = 7,841.73 - Step 5: Solve for x
x = 7,841.73/108.92 - Step 6: Final answer
x = 71.99
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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.