Finding the Fourth Proportional to 132,076.20, 198,114.30 and 53,149.80
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Solution
The fourth proportional to 132,076.20, 198,114.30 and 53,149.80 is: 79,724.70
Step by Step Solution
- Step 1: Write the proportion equation
132,076.20 : 198,114.30 = 53,149.80 : x - Step 2: Convert to fraction form
132,076.20/198,114.30 = 53,149.80/x - Step 3: Cross multiply
132,076.20x = 198,114.30 × 53,149.80 - Step 4: Simplify right side
132,076.20x = 10,529,735,422.14 - Step 5: Solve for x
x = 10,529,735,422.14/132,076.20 - Step 6: Final answer
x = 79,724.70
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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.