Finding the Fourth Proportional to 94.72, 142.32 and 91.84
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Solution
The fourth proportional to 94.72, 142.32 and 91.84 is: 137.99
Step by Step Solution
- Step 1: Write the proportion equation
94.72 : 142.32 = 91.84 : x - Step 2: Convert to fraction form
94.72/142.32 = 91.84/x - Step 3: Cross multiply
94.72x = 142.32 × 91.84 - Step 4: Simplify right side
94.72x = 13,070.67 - Step 5: Solve for x
x = 13,070.67/94.72 - Step 6: Final answer
x = 137.99
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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.