Finding the Fourth Proportional to 98.36, 146.97 and 84.88
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Solution
The fourth proportional to 98.36, 146.97 and 84.88 is: 126.83
Step by Step Solution
- Step 1: Write the proportion equation
98.36 : 146.97 = 84.88 : x - Step 2: Convert to fraction form
98.36/146.97 = 84.88/x - Step 3: Cross multiply
98.36x = 146.97 × 84.88 - Step 4: Simplify right side
98.36x = 12,474.81 - Step 5: Solve for x
x = 12,474.81/98.36 - Step 6: Final answer
x = 126.83
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.