Finding the Fourth Proportional to 122,556.42, 169,128.54 and 68,843.70
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Solution
The fourth proportional to 122,556.42, 169,128.54 and 68,843.70 is: 95,004.69
Step by Step Solution
- Step 1: Write the proportion equation
122,556.42 : 169,128.54 = 68,843.70 : x - Step 2: Convert to fraction form
122,556.42/169,128.54 = 68,843.70/x - Step 3: Cross multiply
122,556.42x = 169,128.54 × 68,843.70 - Step 4: Simplify right side
122,556.42x = 11,643,434,469.20 - Step 5: Solve for x
x = 11,643,434,469.20/122,556.42 - Step 6: Final answer
x = 95,004.69
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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.