Finding the Fourth Proportional to 122,556.26, 169,192.14 and 82,480.70
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Solution
The fourth proportional to 122,556.26, 169,192.14 and 82,480.70 is: 113,866.78
Step by Step Solution
- Step 1: Write the proportion equation
122,556.26 : 169,192.14 = 82,480.70 : x - Step 2: Convert to fraction form
122,556.26/169,192.14 = 82,480.70/x - Step 3: Cross multiply
122,556.26x = 169,192.14 × 82,480.70 - Step 4: Simplify right side
122,556.26x = 13,955,086,141.70 - Step 5: Solve for x
x = 13,955,086,141.70/122,556.26 - Step 6: Final answer
x = 113,866.78
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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.