Finding the Fourth Proportional to 133.39, 183.99 and 80.95
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Solution
The fourth proportional to 133.39, 183.99 and 80.95 is: 111.66
Step by Step Solution
- Step 1: Write the proportion equation
133.39 : 183.99 = 80.95 : x - Step 2: Convert to fraction form
133.39/183.99 = 80.95/x - Step 3: Cross multiply
133.39x = 183.99 × 80.95 - Step 4: Simplify right side
133.39x = 14,893.99 - Step 5: Solve for x
x = 14,893.99/133.39 - Step 6: Final answer
x = 111.66
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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.