Finding the Fourth Proportional to 135.11, 201.80 and 119.99
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Solution
The fourth proportional to 135.11, 201.80 and 119.99 is: 179.21
Step by Step Solution
- Step 1: Write the proportion equation
135.11 : 201.80 = 119.99 : x - Step 2: Convert to fraction form
135.11/201.80 = 119.99/x - Step 3: Cross multiply
135.11x = 201.80 × 119.99 - Step 4: Simplify right side
135.11x = 24,212.37 - Step 5: Solve for x
x = 24,212.37/135.11 - Step 6: Final answer
x = 179.21
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.