Finding the Fourth Proportional to 168,119.21, 252,129.60 and 138,463.49
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Solution
The fourth proportional to 168,119.21, 252,129.60 and 138,463.49 is: 207,654.70
Step by Step Solution
- Step 1: Write the proportion equation
168,119.21 : 252,129.60 = 138,463.49 : x - Step 2: Convert to fraction form
168,119.21/252,129.60 = 138,463.49/x - Step 3: Cross multiply
168,119.21x = 252,129.60 × 138,463.49 - Step 4: Simplify right side
168,119.21x = 34,910,743,087.66 - Step 5: Solve for x
x = 34,910,743,087.66/168,119.21 - Step 6: Final answer
x = 207,654.70
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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.