Finding the Third Proportional to 78,288.75 and 104,869.13
Calculator
Solution
The third proportional to 78,288.75 and 104,869.13 is: 140,473.99
Step by Step Solution
- Step 1: Write the proportion equation
78,288.75 : 104,869.13 = 104,869.13 : x - Step 2: Convert to fraction form
78,288.75/104,869.13 = 104,869.13/x - Step 3: Cross multiply
78,288.75x = 104,869.13 × 104,869.13 - Step 4: Simplify right side
78,288.75x = 10,997,533,378.27 - Step 5: Solve for x
x = 10,997,533,378.27/78,288.75 - Step 6: Final answer
x = 140,473.99
Related Problems
Find third proportional to 39,144.38 and 52,434.56
Half scale
Find third proportional to 156,577.50 and 209,738.25
Double scale
Find third proportional to 78,291 and 104,872
Similar ratio
Find third proportional to 117,433.13 and 157,303.69
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.