Finding the Fourth Proportional to 132.87, 198.99 and 84.63
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Solution
The fourth proportional to 132.87, 198.99 and 84.63 is: 126.74
Step by Step Solution
- Step 1: Write the proportion equation
132.87 : 198.99 = 84.63 : x - Step 2: Convert to fraction form
132.87/198.99 = 84.63/x - Step 3: Cross multiply
132.87x = 198.99 × 84.63 - Step 4: Simplify right side
132.87x = 16,840.52 - Step 5: Solve for x
x = 16,840.52/132.87 - Step 6: Final answer
x = 126.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.