Finding the Fourth Proportional to 122,133.26, 168,540.86 and 68,417.92
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Solution
The fourth proportional to 122,133.26, 168,540.86 and 68,417.92 is: 94,415.03
Step by Step Solution
- Step 1: Write the proportion equation
122,133.26 : 168,540.86 = 68,417.92 : x - Step 2: Convert to fraction form
122,133.26/168,540.86 = 68,417.92/x - Step 3: Cross multiply
122,133.26x = 168,540.86 × 68,417.92 - Step 4: Simplify right side
122,133.26x = 11,531,215,076.21 - Step 5: Solve for x
x = 11,531,215,076.21/122,133.26 - Step 6: Final answer
x = 94,415.03
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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.