Finding the Fourth Proportional to 111,994.80, 167,603.40 and 102,663.60
Calculator
Solution
The fourth proportional to 111,994.80, 167,603.40 and 102,663.60 is: 153,638.99
Step by Step Solution
- Step 1: Write the proportion equation
111,994.80 : 167,603.40 = 102,663.60 : x - Step 2: Convert to fraction form
111,994.80/167,603.40 = 102,663.60/x - Step 3: Cross multiply
111,994.80x = 167,603.40 × 102,663.60 - Step 4: Simplify right side
111,994.80x = 17,206,768,416.24 - Step 5: Solve for x
x = 17,206,768,416.24/111,994.80 - Step 6: Final answer
x = 153,638.99
Related Problems
Find fourth proportional to 55,997.40, 83,801.70 and 51,331.80
Half scale
Find fourth proportional to 223,989.60, 335,206.80 and 205,327.20
Double scale
Find fourth proportional to 111,995.80, 167,604.90 and 102,664.60
Similar ratio
Find fourth proportional to 167,992.20, 251,405.10 and 153,995.40
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.