Finding the Fourth Proportional to 92.08, 126.99 and 79.09
Calculator
Solution
The fourth proportional to 92.08, 126.99 and 79.09 is: 109.07
Step by Step Solution
- Step 1: Write the proportion equation
92.08 : 126.99 = 79.09 : x - Step 2: Convert to fraction form
92.08/126.99 = 79.09/x - Step 3: Cross multiply
92.08x = 126.99 × 79.09 - Step 4: Simplify right side
92.08x = 10,043.32 - Step 5: Solve for x
x = 10,043.32/92.08 - Step 6: Final answer
x = 109.07
Related Problems
Find fourth proportional to 46.04, 63.50 and 39.54
Half scale
Find fourth proportional to 184.16, 253.98 and 158.18
Double scale
Find fourth proportional to 93.08, 128.37 and 80.09
Similar ratio
Find fourth proportional to 138.12, 190.49 and 118.63
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.