Finding the Fourth Proportional to 185,715.81, 278,708.99 and 67,396.68
Calculator
Solution
The fourth proportional to 185,715.81, 278,708.99 and 67,396.68 is: 101,144.11
Step by Step Solution
- Step 1: Write the proportion equation
185,715.81 : 278,708.99 = 67,396.68 : x - Step 2: Convert to fraction form
185,715.81/278,708.99 = 67,396.68/x - Step 3: Cross multiply
185,715.81x = 278,708.99 × 67,396.68 - Step 4: Simplify right side
185,715.81x = 18,784,060,275.17 - Step 5: Solve for x
x = 18,784,060,275.17/185,715.81 - Step 6: Final answer
x = 101,144.11
Related Problems
Find fourth proportional to 92,857.91, 139,354.49 and 33,698.34
Half scale
Find fourth proportional to 371,431.62, 557,417.97 and 134,793.36
Double scale
Find fourth proportional to 185,716.81, 278,710.49 and 67,397.68
Similar ratio
Find fourth proportional to 278,573.72, 418,063.48 and 101,095.02
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.