Finding the Fourth Proportional to 115,249.26, 159,008.68 and 66,841.38
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Solution
The fourth proportional to 115,249.26, 159,008.68 and 66,841.38 is: 92,220.63
Step by Step Solution
- Step 1: Write the proportion equation
115,249.26 : 159,008.68 = 66,841.38 : x - Step 2: Convert to fraction form
115,249.26/159,008.68 = 66,841.38/x - Step 3: Cross multiply
115,249.26x = 159,008.68 × 66,841.38 - Step 4: Simplify right side
115,249.26x = 10,628,359,603.18 - Step 5: Solve for x
x = 10,628,359,603.18/115,249.26 - Step 6: Final answer
x = 92,220.63
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1.5x scale
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.