Finding the Fourth Proportional to 134.21, 201.36 and 63.91
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Solution
The fourth proportional to 134.21, 201.36 and 63.91 is: 95.88
Step by Step Solution
- Step 1: Write the proportion equation
134.21 : 201.36 = 63.91 : x - Step 2: Convert to fraction form
134.21/201.36 = 63.91/x - Step 3: Cross multiply
134.21x = 201.36 × 63.91 - Step 4: Simplify right side
134.21x = 12,868.25 - Step 5: Solve for x
x = 12,868.25/134.21 - Step 6: Final answer
x = 95.88
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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.