Finding the Fourth Proportional to 128,914.20, 193,324.94 and 44,651.66
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Solution
The fourth proportional to 128,914.20, 193,324.94 and 44,651.66 is: 66,961.43
Step by Step Solution
- Step 1: Write the proportion equation
128,914.20 : 193,324.94 = 44,651.66 : x - Step 2: Convert to fraction form
128,914.20/193,324.94 = 44,651.66/x - Step 3: Cross multiply
128,914.20x = 193,324.94 × 44,651.66 - Step 4: Simplify right side
128,914.20x = 8,632,279,490.40 - Step 5: Solve for x
x = 8,632,279,490.40/128,914.20 - Step 6: Final answer
x = 66,961.43
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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.