Finding the Fourth Proportional to 133.99, 201.17 and 76.32
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Solution
The fourth proportional to 133.99, 201.17 and 76.32 is: 114.60
Step by Step Solution
- Step 1: Write the proportion equation
133.99 : 201.17 = 76.32 : x - Step 2: Convert to fraction form
133.99/201.17 = 76.32/x - Step 3: Cross multiply
133.99x = 201.17 × 76.32 - Step 4: Simplify right side
133.99x = 15,354.36 - Step 5: Solve for x
x = 15,354.36/133.99 - Step 6: Final answer
x = 114.60
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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.