Finding the Fourth Proportional to 108,758.49, 163,118.29 and 69,198.09
Calculator
Solution
The fourth proportional to 108,758.49, 163,118.29 and 69,198.09 is: 103,784.76
Step by Step Solution
- Step 1: Write the proportion equation
108,758.49 : 163,118.29 = 69,198.09 : x - Step 2: Convert to fraction form
108,758.49/163,118.29 = 69,198.09/x - Step 3: Cross multiply
108,758.49x = 163,118.29 × 69,198.09 - Step 4: Simplify right side
108,758.49x = 11,287,472,950.48 - Step 5: Solve for x
x = 11,287,472,950.48/108,758.49 - Step 6: Final answer
x = 103,784.76
Related Problems
Find fourth proportional to 54,379.24, 81,559.14 and 34,599.04
Half scale
Find fourth proportional to 217,516.97, 326,236.57 and 138,396.17
Double scale
Find fourth proportional to 108,759.49, 163,119.78 and 69,199.09
Similar ratio
Find fourth proportional to 163,137.73, 244,677.43 and 103,797.13
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.