Finding the Fourth Proportional to 133.88, 184.68 and 84.75
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Solution
The fourth proportional to 133.88, 184.68 and 84.75 is: 116.90
Step by Step Solution
- Step 1: Write the proportion equation
133.88 : 184.68 = 84.75 : x - Step 2: Convert to fraction form
133.88/184.68 = 84.75/x - Step 3: Cross multiply
133.88x = 184.68 × 84.75 - Step 4: Simplify right side
133.88x = 15,650.94 - Step 5: Solve for x
x = 15,650.94/133.88 - Step 6: Final answer
x = 116.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.