Finding the Fourth Proportional to 121,141.44, 167,197.20 and 73,435.68
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Solution
The fourth proportional to 121,141.44, 167,197.20 and 73,435.68 is: 101,354.58
Step by Step Solution
- Step 1: Write the proportion equation
121,141.44 : 167,197.20 = 73,435.68 : x - Step 2: Convert to fraction form
121,141.44/167,197.20 = 73,435.68/x - Step 3: Cross multiply
121,141.44x = 167,197.20 × 73,435.68 - Step 4: Simplify right side
121,141.44x = 12,278,240,076.10 - Step 5: Solve for x
x = 12,278,240,076.10/121,141.44 - Step 6: Final answer
x = 101,354.58
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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.