Finding the Fourth Proportional to 88.94, 132.73 and 82.09
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Solution
The fourth proportional to 88.94, 132.73 and 82.09 is: 122.50
Step by Step Solution
- Step 1: Write the proportion equation
88.94 : 132.73 = 82.09 : x - Step 2: Convert to fraction form
88.94/132.73 = 82.09/x - Step 3: Cross multiply
88.94x = 132.73 × 82.09 - Step 4: Simplify right side
88.94x = 10,895.77 - Step 5: Solve for x
x = 10,895.77/88.94 - Step 6: Final answer
x = 122.50
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.