Finding the Fourth Proportional to 134.14, 201.21 and 73.09
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Solution
The fourth proportional to 134.14, 201.21 and 73.09 is: 109.64
Step by Step Solution
- Step 1: Write the proportion equation
134.14 : 201.21 = 73.09 : x - Step 2: Convert to fraction form
134.14/201.21 = 73.09/x - Step 3: Cross multiply
134.14x = 201.21 × 73.09 - Step 4: Simplify right side
134.14x = 14,706.44 - Step 5: Solve for x
x = 14,706.44/134.14 - Step 6: Final answer
x = 109.64
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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.