Finding the Fourth Proportional to 99,697.62, 149,571.63 and 33,138.08
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Solution
The fourth proportional to 99,697.62, 149,571.63 and 33,138.08 is: 49,715.50
Step by Step Solution
- Step 1: Write the proportion equation
99,697.62 : 149,571.63 = 33,138.08 : x - Step 2: Convert to fraction form
99,697.62/149,571.63 = 33,138.08/x - Step 3: Cross multiply
99,697.62x = 149,571.63 × 33,138.08 - Step 4: Simplify right side
99,697.62x = 4,956,516,640.67 - Step 5: Solve for x
x = 4,956,516,640.67/99,697.62 - Step 6: Final answer
x = 49,715.50
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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.