Finding the Third Proportional to 128,855.81 and 196,611.75
Calculator
Solution
The third proportional to 128,855.81 and 196,611.75 is: 299,995.63
Step by Step Solution
- Step 1: Write the proportion equation
128,855.81 : 196,611.75 = 196,611.75 : x - Step 2: Convert to fraction form
128,855.81/196,611.75 = 196,611.75/x - Step 3: Cross multiply
128,855.81x = 196,611.75 × 196,611.75 - Step 4: Simplify right side
128,855.81x = 38,656,180,238.06 - Step 5: Solve for x
x = 38,656,180,238.06/128,855.81 - Step 6: Final answer
x = 299,995.63
Related Problems
Find third proportional to 64,427.91 and 98,305.88
Half scale
Find third proportional to 257,711.63 and 393,223.50
Double scale
Find third proportional to 128,858 and 196,615
Similar ratio
Find third proportional to 193,283.72 and 294,917.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.