Finding the Fourth Proportional to 141,166.80, 194,817.96 and 80,739.99
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Solution
The fourth proportional to 141,166.80, 194,817.96 and 80,739.99 is: 111,425.63
Step by Step Solution
- Step 1: Write the proportion equation
141,166.80 : 194,817.96 = 80,739.99 : x - Step 2: Convert to fraction form
141,166.80/194,817.96 = 80,739.99/x - Step 3: Cross multiply
141,166.80x = 194,817.96 × 80,739.99 - Step 4: Simplify right side
141,166.80x = 15,729,600,142.22 - Step 5: Solve for x
x = 15,729,600,142.22/141,166.80 - Step 6: Final answer
x = 111,425.63
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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.