Finding the Fourth Proportional to 122,001.96, 168,361.04 and 68,286.96
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Solution
The fourth proportional to 122,001.96, 168,361.04 and 68,286.96 is: 94,235.07
Step by Step Solution
- Step 1: Write the proportion equation
122,001.96 : 168,361.04 = 68,286.96 : x - Step 2: Convert to fraction form
122,001.96/168,361.04 = 68,286.96/x - Step 3: Cross multiply
122,001.96x = 168,361.04 × 68,286.96 - Step 4: Simplify right side
122,001.96x = 11,496,863,262.60 - Step 5: Solve for x
x = 11,496,863,262.60/122,001.96 - Step 6: Final answer
x = 94,235.07
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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.