Finding the Fourth Proportional to 146.12, 201.02 and 122.40
Calculator
Solution
The fourth proportional to 146.12, 201.02 and 122.40 is: 168.39
Step by Step Solution
- Step 1: Write the proportion equation
146.12 : 201.02 = 122.40 : x - Step 2: Convert to fraction form
146.12/201.02 = 122.40/x - Step 3: Cross multiply
146.12x = 201.02 × 122.40 - Step 4: Simplify right side
146.12x = 24,604.24 - Step 5: Solve for x
x = 24,604.24/146.12 - Step 6: Final answer
x = 168.39
Related Problems
Find fourth proportional to 73.06, 100.51 and 61.20
Half scale
Find fourth proportional to 292.23, 402.03 and 244.80
Double scale
Find fourth proportional to 147.12, 202.39 and 123.40
Similar ratio
Find fourth proportional to 219.17, 301.52 and 183.60
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.