Finding the Fourth Proportional to 84,137.60, 126,198.12 and 34,220.68
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Solution
The fourth proportional to 84,137.60, 126,198.12 and 34,220.68 is: 51,327.65
Step by Step Solution
- Step 1: Write the proportion equation
84,137.60 : 126,198.12 = 34,220.68 : x - Step 2: Convert to fraction form
84,137.60/126,198.12 = 34,220.68/x - Step 3: Cross multiply
84,137.60x = 126,198.12 × 34,220.68 - Step 4: Simplify right side
84,137.60x = 4,318,585,481.12 - Step 5: Solve for x
x = 4,318,585,481.12/84,137.60 - Step 6: Final answer
x = 51,327.65
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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.