Finding the Fourth Proportional to 123,249.26, 170,083.99 and 66,660.63
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Solution
The fourth proportional to 123,249.26, 170,083.99 and 66,660.63 is: 91,991.68
Step by Step Solution
- Step 1: Write the proportion equation
123,249.26 : 170,083.99 = 66,660.63 : x - Step 2: Convert to fraction form
123,249.26/170,083.99 = 66,660.63/x - Step 3: Cross multiply
123,249.26x = 170,083.99 × 66,660.63 - Step 4: Simplify right side
123,249.26x = 11,337,905,759.66 - Step 5: Solve for x
x = 11,337,905,759.66/123,249.26 - Step 6: Final answer
x = 91,991.68
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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.