Finding the Fourth Proportional to 121,088.26, 167,102.62 and 67,375.54
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Solution
The fourth proportional to 121,088.26, 167,102.62 and 67,375.54 is: 92,978.70
Step by Step Solution
- Step 1: Write the proportion equation
121,088.26 : 167,102.62 = 67,375.54 : x - Step 2: Convert to fraction form
121,088.26/167,102.62 = 67,375.54/x - Step 3: Cross multiply
121,088.26x = 167,102.62 × 67,375.54 - Step 4: Simplify right side
121,088.26x = 11,258,629,257.91 - Step 5: Solve for x
x = 11,258,629,257.91/121,088.26 - Step 6: Final answer
x = 92,978.70
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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.