Finding the Fourth Proportional to 148,768.05, 205,299.68 and 81,700.05
Calculator
Solution
The fourth proportional to 148,768.05, 205,299.68 and 81,700.05 is: 112,745.94
Step by Step Solution
- Step 1: Write the proportion equation
148,768.05 : 205,299.68 = 81,700.05 : x - Step 2: Convert to fraction form
148,768.05/205,299.68 = 81,700.05/x - Step 3: Cross multiply
148,768.05x = 205,299.68 × 81,700.05 - Step 4: Simplify right side
148,768.05x = 16,772,993,712.48 - Step 5: Solve for x
x = 16,772,993,712.48/148,768.05 - Step 6: Final answer
x = 112,745.94
Related Problems
Find fourth proportional to 74,384.03, 102,649.84 and 40,850.03
Half scale
Find fourth proportional to 297,536.10, 410,599.35 and 163,400.10
Double scale
Find fourth proportional to 148,769.05, 205,301.05 and 81,701.05
Similar ratio
Find fourth proportional to 223,152.08, 307,949.51 and 122,550.08
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.