Finding the Fourth Proportional to 121,998.35, 182,976.76 and 33,231.09
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Solution
The fourth proportional to 121,998.35, 182,976.76 and 33,231.09 is: 49,840.98
Step by Step Solution
- Step 1: Write the proportion equation
121,998.35 : 182,976.76 = 33,231.09 : x - Step 2: Convert to fraction form
121,998.35/182,976.76 = 33,231.09/x - Step 3: Cross multiply
121,998.35x = 182,976.76 × 33,231.09 - Step 4: Simplify right side
121,998.35x = 6,080,517,013.31 - Step 5: Solve for x
x = 6,080,517,013.31/121,998.35 - Step 6: Final answer
x = 49,840.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.