Finding the Fourth Proportional to 121,439.62, 167,717.34 and 92,450.02
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Solution
The fourth proportional to 121,439.62, 167,717.34 and 92,450.02 is: 127,680.50
Step by Step Solution
- Step 1: Write the proportion equation
121,439.62 : 167,717.34 = 92,450.02 : x - Step 2: Convert to fraction form
121,439.62/167,717.34 = 92,450.02/x - Step 3: Cross multiply
121,439.62x = 167,717.34 × 92,450.02 - Step 4: Simplify right side
121,439.62x = 15,505,471,437.35 - Step 5: Solve for x
x = 15,505,471,437.35/121,439.62 - Step 6: Final answer
x = 127,680.50
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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.