Finding the Fourth Proportional to 133.94, 184.68 and 84.75
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Solution
The fourth proportional to 133.94, 184.68 and 84.75 is: 116.86
Step by Step Solution
- Step 1: Write the proportion equation
133.94 : 184.68 = 84.75 : x - Step 2: Convert to fraction form
133.94/184.68 = 84.75/x - Step 3: Cross multiply
133.94x = 184.68 × 84.75 - Step 4: Simplify right side
133.94x = 15,651.63 - Step 5: Solve for x
x = 15,651.63/133.94 - Step 6: Final answer
x = 116.86
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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.