Finding the Fourth Proportional to 132.74, 183.09 and 80.99
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Solution
The fourth proportional to 132.74, 183.09 and 80.99 is: 111.70
Step by Step Solution
- Step 1: Write the proportion equation
132.74 : 183.09 = 80.99 : x - Step 2: Convert to fraction form
132.74/183.09 = 80.99/x - Step 3: Cross multiply
132.74x = 183.09 × 80.99 - Step 4: Simplify right side
132.74x = 14,827.14 - Step 5: Solve for x
x = 14,827.14/132.74 - Step 6: Final answer
x = 111.70
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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.