Finding the Fourth Proportional to 141.70, 195.42 and 101.75
Calculator
Solution
The fourth proportional to 141.70, 195.42 and 101.75 is: 140.32
Step by Step Solution
- Step 1: Write the proportion equation
141.70 : 195.42 = 101.75 : x - Step 2: Convert to fraction form
141.70/195.42 = 101.75/x - Step 3: Cross multiply
141.70x = 195.42 × 101.75 - Step 4: Simplify right side
141.70x = 19,883.99 - Step 5: Solve for x
x = 19,883.99/141.70 - Step 6: Final answer
x = 140.32
Related Problems
Find fourth proportional to 70.85, 97.71 and 50.88
Half scale
Find fourth proportional to 283.40, 390.84 and 203.50
Double scale
Find fourth proportional to 142.70, 196.80 and 102.75
Similar ratio
Find fourth proportional to 212.55, 293.13 and 152.63
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.