Finding the Fourth Proportional to 68,108.80, 102,163.20 and 68,108.80
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Solution
The fourth proportional to 68,108.80, 102,163.20 and 68,108.80 is: 102,163.20
Step by Step Solution
- Step 1: Write the proportion equation
68,108.80 : 102,163.20 = 68,108.80 : x - Step 2: Convert to fraction form
68,108.80/102,163.20 = 68,108.80/x - Step 3: Cross multiply
68,108.80x = 102,163.20 × 68,108.80 - Step 4: Simplify right side
68,108.80x = 6,958,212,956.16 - Step 5: Solve for x
x = 6,958,212,956.16/68,108.80 - Step 6: Final answer
x = 102,163.20
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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.