Finding the Fourth Proportional to 129,234.16, 193,813.80 and 50,330.80
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Solution
The fourth proportional to 129,234.16, 193,813.80 and 50,330.80 is: 75,481.62
Step by Step Solution
- Step 1: Write the proportion equation
129,234.16 : 193,813.80 = 50,330.80 : x - Step 2: Convert to fraction form
129,234.16/193,813.80 = 50,330.80/x - Step 3: Cross multiply
129,234.16x = 193,813.80 × 50,330.80 - Step 4: Simplify right side
129,234.16x = 9,754,803,605.04 - Step 5: Solve for x
x = 9,754,803,605.04/129,234.16 - Step 6: Final answer
x = 75,481.62
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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.