Finding the Fourth Proportional to 134.60, 201.58 and 80.36
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Solution
The fourth proportional to 134.60, 201.58 and 80.36 is: 120.35
Step by Step Solution
- Step 1: Write the proportion equation
134.60 : 201.58 = 80.36 : x - Step 2: Convert to fraction form
134.60/201.58 = 80.36/x - Step 3: Cross multiply
134.60x = 201.58 × 80.36 - Step 4: Simplify right side
134.60x = 16,198.97 - Step 5: Solve for x
x = 16,198.97/134.60 - Step 6: Final answer
x = 120.35
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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.