Finding the Fourth Proportional to 193,163.70, 289,745.55 and 68,517.30
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Solution
The fourth proportional to 193,163.70, 289,745.55 and 68,517.30 is: 102,775.95
Step by Step Solution
- Step 1: Write the proportion equation
193,163.70 : 289,745.55 = 68,517.30 : x - Step 2: Convert to fraction form
193,163.70/289,745.55 = 68,517.30/x - Step 3: Cross multiply
193,163.70x = 289,745.55 × 68,517.30 - Step 4: Simplify right side
193,163.70x = 19,852,582,773.02 - Step 5: Solve for x
x = 19,852,582,773.02/193,163.70 - Step 6: Final answer
x = 102,775.95
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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.