Finding the Fourth Proportional to 104,229.75, 143,849.81 and 67,969.99
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Solution
The fourth proportional to 104,229.75, 143,849.81 and 67,969.99 is: 93,806.89
Step by Step Solution
- Step 1: Write the proportion equation
104,229.75 : 143,849.81 = 67,969.99 : x - Step 2: Convert to fraction form
104,229.75/143,849.81 = 67,969.99/x - Step 3: Cross multiply
104,229.75x = 143,849.81 × 67,969.99 - Step 4: Simplify right side
104,229.75x = 9,777,469,305.45 - Step 5: Solve for x
x = 9,777,469,305.45/104,229.75 - Step 6: Final answer
x = 93,806.89
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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.