Finding the Fourth Proportional to 133.25, 183.79 and 84.08
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Solution
The fourth proportional to 133.25, 183.79 and 84.08 is: 115.97
Step by Step Solution
- Step 1: Write the proportion equation
133.25 : 183.79 = 84.08 : x - Step 2: Convert to fraction form
133.25/183.79 = 84.08/x - Step 3: Cross multiply
133.25x = 183.79 × 84.08 - Step 4: Simplify right side
133.25x = 15,453.06 - Step 5: Solve for x
x = 15,453.06/133.25 - Step 6: Final answer
x = 115.97
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.