Finding the Fourth Proportional to 142,082.99, 213,122.62 and 40,883.68
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Solution
The fourth proportional to 142,082.99, 213,122.62 and 40,883.68 is: 61,324.98
Step by Step Solution
- Step 1: Write the proportion equation
142,082.99 : 213,122.62 = 40,883.68 : x - Step 2: Convert to fraction form
142,082.99/213,122.62 = 40,883.68/x - Step 3: Cross multiply
142,082.99x = 213,122.62 × 40,883.68 - Step 4: Simplify right side
142,082.99x = 8,713,236,996.84 - Step 5: Solve for x
x = 8,713,236,996.84/142,082.99 - Step 6: Final answer
x = 61,324.98
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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.