Finding the Fourth Proportional to 127,197.46, 190,571.69 and 77,175.99
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Solution
The fourth proportional to 127,197.46, 190,571.69 and 77,175.99 is: 115,627.77
Step by Step Solution
- Step 1: Write the proportion equation
127,197.46 : 190,571.69 = 77,175.99 : x - Step 2: Convert to fraction form
127,197.46/190,571.69 = 77,175.99/x - Step 3: Cross multiply
127,197.46x = 190,571.69 × 77,175.99 - Step 4: Simplify right side
127,197.46x = 14,707,558,600.55 - Step 5: Solve for x
x = 14,707,558,600.55/127,197.46 - Step 6: Final answer
x = 115,627.77
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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.