Finding the Fourth Proportional to 133.75, 201.08 and 88.19
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Solution
The fourth proportional to 133.75, 201.08 and 88.19 is: 132.58
Step by Step Solution
- Step 1: Write the proportion equation
133.75 : 201.08 = 88.19 : x - Step 2: Convert to fraction form
133.75/201.08 = 88.19/x - Step 3: Cross multiply
133.75x = 201.08 × 88.19 - Step 4: Simplify right side
133.75x = 17,733.21 - Step 5: Solve for x
x = 17,733.21/133.75 - Step 6: Final answer
x = 132.58
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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.