Finding the Fourth Proportional to 129,043.13, 193,527.73 and 54,180.09
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Solution
The fourth proportional to 129,043.13, 193,527.73 and 54,180.09 is: 81,254.62
Step by Step Solution
- Step 1: Write the proportion equation
129,043.13 : 193,527.73 = 54,180.09 : x - Step 2: Convert to fraction form
129,043.13/193,527.73 = 54,180.09/x - Step 3: Cross multiply
129,043.13x = 193,527.73 × 54,180.09 - Step 4: Simplify right side
129,043.13x = 10,485,349,896.62 - Step 5: Solve for x
x = 10,485,349,896.62/129,043.13 - Step 6: Final answer
x = 81,254.62
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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.