Finding the Fourth Proportional to 132.25, 198.21 and 93.74
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Solution
The fourth proportional to 132.25, 198.21 and 93.74 is: 140.49
Step by Step Solution
- Step 1: Write the proportion equation
132.25 : 198.21 = 93.74 : x - Step 2: Convert to fraction form
132.25/198.21 = 93.74/x - Step 3: Cross multiply
132.25x = 198.21 × 93.74 - Step 4: Simplify right side
132.25x = 18,579.24 - Step 5: Solve for x
x = 18,579.24/132.25 - Step 6: Final answer
x = 140.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.