Finding the Fourth Proportional to 120,662.23, 180,962.97 and 49,604.68
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Solution
The fourth proportional to 120,662.23, 180,962.97 and 49,604.68 is: 74,394.53
Step by Step Solution
- Step 1: Write the proportion equation
120,662.23 : 180,962.97 = 49,604.68 : x - Step 2: Convert to fraction form
120,662.23/180,962.97 = 49,604.68/x - Step 3: Cross multiply
120,662.23x = 180,962.97 × 49,604.68 - Step 4: Simplify right side
120,662.23x = 8,976,610,218.70 - Step 5: Solve for x
x = 8,976,610,218.70/120,662.23 - Step 6: Final answer
x = 74,394.53
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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.