Finding the Fourth Proportional to 129,701.44, 194,575.20 and 44,307.64
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Solution
The fourth proportional to 129,701.44, 194,575.20 and 44,307.64 is: 66,469.33
Step by Step Solution
- Step 1: Write the proportion equation
129,701.44 : 194,575.20 = 44,307.64 : x - Step 2: Convert to fraction form
129,701.44/194,575.20 = 44,307.64/x - Step 3: Cross multiply
129,701.44x = 194,575.20 × 44,307.64 - Step 4: Simplify right side
129,701.44x = 8,621,167,914.53 - Step 5: Solve for x
x = 8,621,167,914.53/129,701.44 - Step 6: Final answer
x = 66,469.33
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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.