Finding the Fourth Proportional to 110,986.97, 153,163.58 and 65,663.82
Calculator
Solution
The fourth proportional to 110,986.97, 153,163.58 and 65,663.82 is: 90,617.00
Step by Step Solution
- Step 1: Write the proportion equation
110,986.97 : 153,163.58 = 65,663.82 : x - Step 2: Convert to fraction form
110,986.97/153,163.58 = 65,663.82/x - Step 3: Cross multiply
110,986.97x = 153,163.58 × 65,663.82 - Step 4: Simplify right side
110,986.97x = 10,057,305,419.36 - Step 5: Solve for x
x = 10,057,305,419.36/110,986.97 - Step 6: Final answer
x = 90,617.00
Related Problems
Find fourth proportional to 55,493.48, 76,581.79 and 32,831.91
Half scale
Find fourth proportional to 221,973.93, 306,327.15 and 131,327.64
Double scale
Find fourth proportional to 110,987.97, 153,164.96 and 65,664.82
Similar ratio
Find fourth proportional to 166,480.45, 229,745.36 and 98,495.73
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.