Finding the Fourth Proportional to 122,169.87, 168,592.79 and 68,455.94
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Solution
The fourth proportional to 122,169.87, 168,592.79 and 68,455.94 is: 94,468.28
Step by Step Solution
- Step 1: Write the proportion equation
122,169.87 : 168,592.79 = 68,455.94 : x - Step 2: Convert to fraction form
122,169.87/168,592.79 = 68,455.94/x - Step 3: Cross multiply
122,169.87x = 168,592.79 × 68,455.94 - Step 4: Simplify right side
122,169.87x = 11,541,177,244.85 - Step 5: Solve for x
x = 11,541,177,244.85/122,169.87 - Step 6: Final answer
x = 94,468.28
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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.