Finding the Fourth Proportional to 108.82, 163.18 and 47.99
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Solution
The fourth proportional to 108.82, 163.18 and 47.99 is: 71.96
Step by Step Solution
- Step 1: Write the proportion equation
108.82 : 163.18 = 47.99 : x - Step 2: Convert to fraction form
108.82/163.18 = 47.99/x - Step 3: Cross multiply
108.82x = 163.18 × 47.99 - Step 4: Simplify right side
108.82x = 7,831.01 - Step 5: Solve for x
x = 7,831.01/108.82 - Step 6: Final answer
x = 71.96
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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.