Finding the Fourth Proportional to 122,614.10, 183,812.19 and 47,716.75
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Solution
The fourth proportional to 122,614.10, 183,812.19 and 47,716.75 is: 71,532.71
Step by Step Solution
- Step 1: Write the proportion equation
122,614.10 : 183,812.19 = 47,716.75 : x - Step 2: Convert to fraction form
122,614.10/183,812.19 = 47,716.75/x - Step 3: Cross multiply
122,614.10x = 183,812.19 × 47,716.75 - Step 4: Simplify right side
122,614.10x = 8,770,919,334.07 - Step 5: Solve for x
x = 8,770,919,334.07/122,614.10 - Step 6: Final answer
x = 71,532.71
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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.