Finding the Fourth Proportional to 161.99, 243.19 and 108.12
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Solution
The fourth proportional to 161.99, 243.19 and 108.12 is: 162.32
Step by Step Solution
- Step 1: Write the proportion equation
161.99 : 243.19 = 108.12 : x - Step 2: Convert to fraction form
161.99/243.19 = 108.12/x - Step 3: Cross multiply
161.99x = 243.19 × 108.12 - Step 4: Simplify right side
161.99x = 26,293.70 - Step 5: Solve for x
x = 26,293.70/161.99 - Step 6: Final answer
x = 162.32
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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.