Finding the Fourth Proportional to 200,091.66, 300,137.97 and 81,762.99
Calculator
Solution
The fourth proportional to 200,091.66, 300,137.97 and 81,762.99 is: 122,644.68
Step by Step Solution
- Step 1: Write the proportion equation
200,091.66 : 300,137.97 = 81,762.99 : x - Step 2: Convert to fraction form
200,091.66/300,137.97 = 81,762.99/x - Step 3: Cross multiply
200,091.66x = 300,137.97 × 81,762.99 - Step 4: Simplify right side
200,091.66x = 24,540,177,839.73 - Step 5: Solve for x
x = 24,540,177,839.73/200,091.66 - Step 6: Final answer
x = 122,644.68
Related Problems
Find fourth proportional to 100,045.83, 150,068.99 and 40,881.50
Half scale
Find fourth proportional to 400,183.32, 600,275.94 and 163,525.98
Double scale
Find fourth proportional to 200,092.66, 300,139.47 and 81,763.99
Similar ratio
Find fourth proportional to 300,137.49, 450,206.96 and 122,644.49
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.