Finding the Fourth Proportional to 98.26, 135.64 and 63.29
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Solution
The fourth proportional to 98.26, 135.64 and 63.29 is: 87.37
Step by Step Solution
- Step 1: Write the proportion equation
98.26 : 135.64 = 63.29 : x - Step 2: Convert to fraction form
98.26/135.64 = 63.29/x - Step 3: Cross multiply
98.26x = 135.64 × 63.29 - Step 4: Simplify right side
98.26x = 8,585.40 - Step 5: Solve for x
x = 8,585.40/98.26 - Step 6: Final answer
x = 87.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.