Finding the Fourth Proportional to 161.22, 241.68 and 79.99
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Solution
The fourth proportional to 161.22, 241.68 and 79.99 is: 119.91
Step by Step Solution
- Step 1: Write the proportion equation
161.22 : 241.68 = 79.99 : x - Step 2: Convert to fraction form
161.22/241.68 = 79.99/x - Step 3: Cross multiply
161.22x = 241.68 × 79.99 - Step 4: Simplify right side
161.22x = 19,331.68 - Step 5: Solve for x
x = 19,331.68/161.22 - Step 6: Final answer
x = 119.91
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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.