Finding the Fourth Proportional to 132,418.18, 198,636.99 and 53,530.66
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Solution
The fourth proportional to 132,418.18, 198,636.99 and 53,530.66 is: 80,299.92
Step by Step Solution
- Step 1: Write the proportion equation
132,418.18 : 198,636.99 = 53,530.66 : x - Step 2: Convert to fraction form
132,418.18/198,636.99 = 53,530.66/x - Step 3: Cross multiply
132,418.18x = 198,636.99 × 53,530.66 - Step 4: Simplify right side
132,418.18x = 10,633,169,175.11 - Step 5: Solve for x
x = 10,633,169,175.11/132,418.18 - Step 6: Final answer
x = 80,299.92
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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.