Finding the Fourth Proportional to 161.16, 241.75 and 79.99
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Solution
The fourth proportional to 161.16, 241.75 and 79.99 is: 119.99
Step by Step Solution
- Step 1: Write the proportion equation
161.16 : 241.75 = 79.99 : x - Step 2: Convert to fraction form
161.16/241.75 = 79.99/x - Step 3: Cross multiply
161.16x = 241.75 × 79.99 - Step 4: Simplify right side
161.16x = 19,337.08 - Step 5: Solve for x
x = 19,337.08/161.16 - Step 6: Final answer
x = 119.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.