Finding the Fourth Proportional to 168,257.70, 252,381.09 and 68,391.09
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Solution
The fourth proportional to 168,257.70, 252,381.09 and 68,391.09 is: 102,584.42
Step by Step Solution
- Step 1: Write the proportion equation
168,257.70 : 252,381.09 = 68,391.09 : x - Step 2: Convert to fraction form
168,257.70/252,381.09 = 68,391.09/x - Step 3: Cross multiply
168,257.70x = 252,381.09 × 68,391.09 - Step 4: Simplify right side
168,257.70x = 17,260,617,840.49 - Step 5: Solve for x
x = 17,260,617,840.49/168,257.70 - Step 6: Final answer
x = 102,584.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.