Finding the Fourth Proportional to 142.67, 214.01 and 119.99
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Solution
The fourth proportional to 142.67, 214.01 and 119.99 is: 179.99
Step by Step Solution
- Step 1: Write the proportion equation
142.67 : 214.01 = 119.99 : x - Step 2: Convert to fraction form
142.67/214.01 = 119.99/x - Step 3: Cross multiply
142.67x = 214.01 × 119.99 - Step 4: Simplify right side
142.67x = 25,679.06 - Step 5: Solve for x
x = 25,679.06/142.67 - Step 6: Final answer
x = 179.99
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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.