Finding the Fourth Proportional to 130.26, 195.26 and 84.63
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Solution
The fourth proportional to 130.26, 195.26 and 84.63 is: 126.86
Step by Step Solution
- Step 1: Write the proportion equation
130.26 : 195.26 = 84.63 : x - Step 2: Convert to fraction form
130.26/195.26 = 84.63/x - Step 3: Cross multiply
130.26x = 195.26 × 84.63 - Step 4: Simplify right side
130.26x = 16,524.85 - Step 5: Solve for x
x = 16,524.85/130.26 - Step 6: Final answer
x = 126.86
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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.