Finding the Fourth Proportional to 159.99, 239.58 and 135.69
Calculator
Solution
The fourth proportional to 159.99, 239.58 and 135.69 is: 203.19
Step by Step Solution
- Step 1: Write the proportion equation
159.99 : 239.58 = 135.69 : x - Step 2: Convert to fraction form
159.99/239.58 = 135.69/x - Step 3: Cross multiply
159.99x = 239.58 × 135.69 - Step 4: Simplify right side
159.99x = 32,508.61 - Step 5: Solve for x
x = 32,508.61/159.99 - Step 6: Final answer
x = 203.19
Related Problems
Find fourth proportional to 80.00, 119.79 and 67.85
Half scale
Find fourth proportional to 319.98, 479.16 and 271.38
Double scale
Find fourth proportional to 160.99, 241.08 and 136.69
Similar ratio
Find fourth proportional to 239.99, 359.37 and 203.54
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.