Finding the Fourth Proportional to 128,496.10, 192,777.36 and 49,589.14
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Solution
The fourth proportional to 128,496.10, 192,777.36 and 49,589.14 is: 74,396.53
Step by Step Solution
- Step 1: Write the proportion equation
128,496.10 : 192,777.36 = 49,589.14 : x - Step 2: Convert to fraction form
128,496.10/192,777.36 = 49,589.14/x - Step 3: Cross multiply
128,496.10x = 192,777.36 × 49,589.14 - Step 4: Simplify right side
128,496.10x = 9,559,663,493.87 - Step 5: Solve for x
x = 9,559,663,493.87/128,496.10 - Step 6: Final answer
x = 74,396.53
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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.