Finding the Fourth Proportional to 129,704.82, 194,563.19 and 39,741.09
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Solution
The fourth proportional to 129,704.82, 194,563.19 and 39,741.09 is: 59,613.46
Step by Step Solution
- Step 1: Write the proportion equation
129,704.82 : 194,563.19 = 39,741.09 : x - Step 2: Convert to fraction form
129,704.82/194,563.19 = 39,741.09/x - Step 3: Cross multiply
129,704.82x = 194,563.19 × 39,741.09 - Step 4: Simplify right side
129,704.82x = 7,732,153,343.83 - Step 5: Solve for x
x = 7,732,153,343.83/129,704.82 - Step 6: Final answer
x = 59,613.46
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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.