Finding the Fourth Proportional to 132.19, 199.06 and 98.19
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Solution
The fourth proportional to 132.19, 199.06 and 98.19 is: 147.86
Step by Step Solution
- Step 1: Write the proportion equation
132.19 : 199.06 = 98.19 : x - Step 2: Convert to fraction form
132.19/199.06 = 98.19/x - Step 3: Cross multiply
132.19x = 199.06 × 98.19 - Step 4: Simplify right side
132.19x = 19,545.21 - Step 5: Solve for x
x = 19,545.21/132.19 - Step 6: Final answer
x = 147.86
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.