Finding the Fourth Proportional to 123,771.21, 170,716.05 and 113,595.09
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Solution
The fourth proportional to 123,771.21, 170,716.05 and 113,595.09 is: 156,680.26
Step by Step Solution
- Step 1: Write the proportion equation
123,771.21 : 170,716.05 = 113,595.09 : x - Step 2: Convert to fraction form
123,771.21/170,716.05 = 113,595.09/x - Step 3: Cross multiply
123,771.21x = 170,716.05 × 113,595.09 - Step 4: Simplify right side
123,771.21x = 19,392,505,064.19 - Step 5: Solve for x
x = 19,392,505,064.19/123,771.21 - Step 6: Final answer
x = 156,680.26
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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.