Finding the Fourth Proportional to 129,845.63, 194,793.69 and 49,877.75
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Solution
The fourth proportional to 129,845.63, 194,793.69 and 49,877.75 is: 74,826.32
Step by Step Solution
- Step 1: Write the proportion equation
129,845.63 : 194,793.69 = 49,877.75 : x - Step 2: Convert to fraction form
129,845.63/194,793.69 = 49,877.75/x - Step 3: Cross multiply
129,845.63x = 194,793.69 × 49,877.75 - Step 4: Simplify right side
129,845.63x = 9,715,870,971.40 - Step 5: Solve for x
x = 9,715,870,971.40/129,845.63 - Step 6: Final answer
x = 74,826.32
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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.