Finding the Fourth Proportional to 117.26, 175.91 and 70.99
Calculator
Solution
The fourth proportional to 117.26, 175.91 and 70.99 is: 106.50
Step by Step Solution
- Step 1: Write the proportion equation
117.26 : 175.91 = 70.99 : x - Step 2: Convert to fraction form
117.26/175.91 = 70.99/x - Step 3: Cross multiply
117.26x = 175.91 × 70.99 - Step 4: Simplify right side
117.26x = 12,487.85 - Step 5: Solve for x
x = 12,487.85/117.26 - Step 6: Final answer
x = 106.50
Related Problems
Find fourth proportional to 58.63, 87.96 and 35.50
Half scale
Find fourth proportional to 234.52, 351.82 and 141.98
Double scale
Find fourth proportional to 118.26, 177.41 and 71.99
Similar ratio
Find fourth proportional to 175.89, 263.87 and 106.49
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.