Finding the Fourth Proportional to 122,306.13, 168,704.79 and 88,364.49
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Solution
The fourth proportional to 122,306.13, 168,704.79 and 88,364.49 is: 121,886.88
Step by Step Solution
- Step 1: Write the proportion equation
122,306.13 : 168,704.79 = 88,364.49 : x - Step 2: Convert to fraction form
122,306.13/168,704.79 = 88,364.49/x - Step 3: Cross multiply
122,306.13x = 168,704.79 × 88,364.49 - Step 4: Simplify right side
122,306.13x = 14,907,512,728.91 - Step 5: Solve for x
x = 14,907,512,728.91/122,306.13 - Step 6: Final answer
x = 121,886.88
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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.