Finding the Fourth Proportional to 122,415.18, 168,935.97 and 68,704.29
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Solution
The fourth proportional to 122,415.18, 168,935.97 and 68,704.29 is: 94,813.62
Step by Step Solution
- Step 1: Write the proportion equation
122,415.18 : 168,935.97 = 68,704.29 : x - Step 2: Convert to fraction form
122,415.18/168,935.97 = 68,704.29/x - Step 3: Cross multiply
122,415.18x = 168,935.97 × 68,704.29 - Step 4: Simplify right side
122,415.18x = 11,606,625,874.31 - Step 5: Solve for x
x = 11,606,625,874.31/122,415.18 - Step 6: Final answer
x = 94,813.62
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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.