Finding the Fourth Proportional to 132,661.44, 198,861.12 and 53,725.68
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Solution
The fourth proportional to 132,661.44, 198,861.12 and 53,725.68 is: 80,535.45
Step by Step Solution
- Step 1: Write the proportion equation
132,661.44 : 198,861.12 = 53,725.68 : x - Step 2: Convert to fraction form
132,661.44/198,861.12 = 53,725.68/x - Step 3: Cross multiply
132,661.44x = 198,861.12 × 53,725.68 - Step 4: Simplify right side
132,661.44x = 10,683,948,897.56 - Step 5: Solve for x
x = 10,683,948,897.56/132,661.44 - Step 6: Final answer
x = 80,535.45
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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.