Finding the Fourth Proportional to 122,636.08, 169,239.27 and 68,917.96
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Solution
The fourth proportional to 122,636.08, 169,239.27 and 68,917.96 is: 95,107.62
Step by Step Solution
- Step 1: Write the proportion equation
122,636.08 : 169,239.27 = 68,917.96 : x - Step 2: Convert to fraction form
122,636.08/169,239.27 = 68,917.96/x - Step 3: Cross multiply
122,636.08x = 169,239.27 × 68,917.96 - Step 4: Simplify right side
122,636.08x = 11,663,625,240.29 - Step 5: Solve for x
x = 11,663,625,240.29/122,636.08 - Step 6: Final answer
x = 95,107.62
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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.