Finding the Fourth Proportional to 99,942.99, 149,892.41 and 28,850.19
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Solution
The fourth proportional to 99,942.99, 149,892.41 and 28,850.19 is: 43,268.90
Step by Step Solution
- Step 1: Write the proportion equation
99,942.99 : 149,892.41 = 28,850.19 : x - Step 2: Convert to fraction form
99,942.99/149,892.41 = 28,850.19/x - Step 3: Cross multiply
99,942.99x = 149,892.41 × 28,850.19 - Step 4: Simplify right side
99,942.99x = 4,324,423,830.72 - Step 5: Solve for x
x = 4,324,423,830.72/99,942.99 - Step 6: Final answer
x = 43,268.90
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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.