Finding the Fourth Proportional to 125,456.49, 173,163.14 and 77,682.69
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Solution
The fourth proportional to 125,456.49, 173,163.14 and 77,682.69 is: 107,222.66
Step by Step Solution
- Step 1: Write the proportion equation
125,456.49 : 173,163.14 = 77,682.69 : x - Step 2: Convert to fraction form
125,456.49/173,163.14 = 77,682.69/x - Step 3: Cross multiply
125,456.49x = 173,163.14 × 77,682.69 - Step 4: Simplify right side
125,456.49x = 13,451,778,524.05 - Step 5: Solve for x
x = 13,451,778,524.05/125,456.49 - Step 6: Final answer
x = 107,222.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.