Finding the Fourth Proportional to 121,722.44, 167,976.52 and 67,273.08
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Solution
The fourth proportional to 121,722.44, 167,976.52 and 67,273.08 is: 92,836.60
Step by Step Solution
- Step 1: Write the proportion equation
121,722.44 : 167,976.52 = 67,273.08 : x - Step 2: Convert to fraction form
121,722.44/167,976.52 = 67,273.08/x - Step 3: Cross multiply
121,722.44x = 167,976.52 × 67,273.08 - Step 4: Simplify right side
121,722.44x = 11,300,297,868.08 - Step 5: Solve for x
x = 11,300,297,868.08/121,722.44 - Step 6: Final answer
x = 92,836.60
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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.