Finding the Fourth Proportional to 121,759.11, 182,450.23 and 84,392.19
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Solution
The fourth proportional to 121,759.11, 182,450.23 and 84,392.19 is: 126,457.68
Step by Step Solution
- Step 1: Write the proportion equation
121,759.11 : 182,450.23 = 84,392.19 : x - Step 2: Convert to fraction form
121,759.11/182,450.23 = 84,392.19/x - Step 3: Cross multiply
121,759.11x = 182,450.23 × 84,392.19 - Step 4: Simplify right side
121,759.11x = 15,397,374,475.70 - Step 5: Solve for x
x = 15,397,374,475.70/121,759.11 - Step 6: Final answer
x = 126,457.68
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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.