Finding the Fourth Proportional to 121,042.21, 167,042.25 and 66,596.62
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Solution
The fourth proportional to 121,042.21, 167,042.25 and 66,596.62 is: 91,905.54
Step by Step Solution
- Step 1: Write the proportion equation
121,042.21 : 167,042.25 = 66,596.62 : x - Step 2: Convert to fraction form
121,042.21/167,042.25 = 66,596.62/x - Step 3: Cross multiply
121,042.21x = 167,042.25 × 66,596.62 - Step 4: Simplify right side
121,042.21x = 11,124,449,247.20 - Step 5: Solve for x
x = 11,124,449,247.20/121,042.21 - Step 6: Final answer
x = 91,905.54
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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.