Finding the Fourth Proportional to 94.25, 141.14 and 84.99
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Solution
The fourth proportional to 94.25, 141.14 and 84.99 is: 127.28
Step by Step Solution
- Step 1: Write the proportion equation
94.25 : 141.14 = 84.99 : x - Step 2: Convert to fraction form
94.25/141.14 = 84.99/x - Step 3: Cross multiply
94.25x = 141.14 × 84.99 - Step 4: Simplify right side
94.25x = 11,995.06 - Step 5: Solve for x
x = 11,995.06/94.25 - Step 6: Final answer
x = 127.28
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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.