Finding the Fourth Proportional to 111,118.38, 153,342.19 and 60,129.99
Calculator
Solution
The fourth proportional to 111,118.38, 153,342.19 and 60,129.99 is: 82,978.75
Step by Step Solution
- Step 1: Write the proportion equation
111,118.38 : 153,342.19 = 60,129.99 : x - Step 2: Convert to fraction form
111,118.38/153,342.19 = 60,129.99/x - Step 3: Cross multiply
111,118.38x = 153,342.19 × 60,129.99 - Step 4: Simplify right side
111,118.38x = 9,220,464,200.95 - Step 5: Solve for x
x = 9,220,464,200.95/111,118.38 - Step 6: Final answer
x = 82,978.75
Related Problems
Find fourth proportional to 55,559.19, 76,671.09 and 30,065.00
Half scale
Find fourth proportional to 222,236.76, 306,684.38 and 120,259.98
Double scale
Find fourth proportional to 111,119.38, 153,343.57 and 60,130.99
Similar ratio
Find fourth proportional to 166,677.57, 230,013.28 and 90,194.99
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.