Finding the Fourth Proportional to 186,176.21, 256,942.13 and 109,719.09
Calculator
Solution
The fourth proportional to 186,176.21, 256,942.13 and 109,719.09 is: 151,423.52
Step by Step Solution
- Step 1: Write the proportion equation
186,176.21 : 256,942.13 = 109,719.09 : x - Step 2: Convert to fraction form
186,176.21/256,942.13 = 109,719.09/x - Step 3: Cross multiply
186,176.21x = 256,942.13 × 109,719.09 - Step 4: Simplify right side
186,176.21x = 28,191,456,137.67 - Step 5: Solve for x
x = 28,191,456,137.67/186,176.21 - Step 6: Final answer
x = 151,423.52
Related Problems
Find fourth proportional to 93,088.10, 128,471.06 and 54,859.55
Half scale
Find fourth proportional to 372,352.41, 513,884.25 and 219,438.18
Double scale
Find fourth proportional to 186,177.21, 256,943.51 and 109,720.09
Similar ratio
Find fourth proportional to 279,264.31, 385,413.19 and 164,578.64
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.