Finding the Fourth Proportional to 126.23, 174.08 and 94.91
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Solution
The fourth proportional to 126.23, 174.08 and 94.91 is: 130.88
Step by Step Solution
- Step 1: Write the proportion equation
126.23 : 174.08 = 94.91 : x - Step 2: Convert to fraction form
126.23/174.08 = 94.91/x - Step 3: Cross multiply
126.23x = 174.08 × 94.91 - Step 4: Simplify right side
126.23x = 16,521.46 - Step 5: Solve for x
x = 16,521.46/126.23 - Step 6: Final answer
x = 130.88
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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.