Finding the Fourth Proportional to 149,687.14, 206,563.11 and 89,226.62
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Solution
The fourth proportional to 149,687.14, 206,563.11 and 89,226.62 is: 123,129.67
Step by Step Solution
- Step 1: Write the proportion equation
149,687.14 : 206,563.11 = 89,226.62 : x - Step 2: Convert to fraction form
149,687.14/206,563.11 = 89,226.62/x - Step 3: Cross multiply
149,687.14x = 206,563.11 × 89,226.62 - Step 4: Simplify right side
149,687.14x = 18,430,928,121.99 - Step 5: Solve for x
x = 18,430,928,121.99/149,687.14 - Step 6: Final answer
x = 123,129.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.