Finding the Fourth Proportional to 133.08, 199.33 and 84.75
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Solution
The fourth proportional to 133.08, 199.33 and 84.75 is: 126.94
Step by Step Solution
- Step 1: Write the proportion equation
133.08 : 199.33 = 84.75 : x - Step 2: Convert to fraction form
133.08/199.33 = 84.75/x - Step 3: Cross multiply
133.08x = 199.33 × 84.75 - Step 4: Simplify right side
133.08x = 16,893.22 - Step 5: Solve for x
x = 16,893.22/133.08 - Step 6: Final answer
x = 126.94
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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.