Finding the Fourth Proportional to 129,620.90, 194,452.95 and 50,737.70
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Solution
The fourth proportional to 129,620.90, 194,452.95 and 50,737.70 is: 76,115.00
Step by Step Solution
- Step 1: Write the proportion equation
129,620.90 : 194,452.95 = 50,737.70 : x - Step 2: Convert to fraction form
129,620.90/194,452.95 = 50,737.70/x - Step 3: Cross multiply
129,620.90x = 194,452.95 × 50,737.70 - Step 4: Simplify right side
129,620.90x = 9,866,095,441.22 - Step 5: Solve for x
x = 9,866,095,441.22/129,620.90 - Step 6: Final answer
x = 76,115.00
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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.