Finding the Fourth Proportional to 134.44, 201.75 and 79.63
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Solution
The fourth proportional to 134.44, 201.75 and 79.63 is: 119.50
Step by Step Solution
- Step 1: Write the proportion equation
134.44 : 201.75 = 79.63 : x - Step 2: Convert to fraction form
134.44/201.75 = 79.63/x - Step 3: Cross multiply
134.44x = 201.75 × 79.63 - Step 4: Simplify right side
134.44x = 16,065.35 - Step 5: Solve for x
x = 16,065.35/134.44 - Step 6: Final answer
x = 119.50
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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.