Finding the Fourth Proportional to 97.68, 146.17 and 84.99
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Solution
The fourth proportional to 97.68, 146.17 and 84.99 is: 127.18
Step by Step Solution
- Step 1: Write the proportion equation
97.68 : 146.17 = 84.99 : x - Step 2: Convert to fraction form
97.68/146.17 = 84.99/x - Step 3: Cross multiply
97.68x = 146.17 × 84.99 - Step 4: Simplify right side
97.68x = 12,422.99 - Step 5: Solve for x
x = 12,422.99/97.68 - Step 6: Final answer
x = 127.18
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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.