Finding the Fourth Proportional to 103,689.67, 155,559.20 and 33,568.99
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Solution
The fourth proportional to 103,689.67, 155,559.20 and 33,568.99 is: 50,361.48
Step by Step Solution
- Step 1: Write the proportion equation
103,689.67 : 155,559.20 = 33,568.99 : x - Step 2: Convert to fraction form
103,689.67/155,559.20 = 33,568.99/x - Step 3: Cross multiply
103,689.67x = 155,559.20 × 33,568.99 - Step 4: Simplify right side
103,689.67x = 5,221,965,229.21 - Step 5: Solve for x
x = 5,221,965,229.21/103,689.67 - Step 6: Final answer
x = 50,361.48
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1.5x scale
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.