Finding the Fourth Proportional to 136,471.32, 204,706.98 and 53,307
Calculator
Solution
The fourth proportional to 136,471.32, 204,706.98 and 53,307 is: 79,960.50
Step by Step Solution
- Step 1: Write the proportion equation
136,471.32 : 204,706.98 = 53,307 : x - Step 2: Convert to fraction form
136,471.32/204,706.98 = 53,307/x - Step 3: Cross multiply
136,471.32x = 204,706.98 × 53,307 - Step 4: Simplify right side
136,471.32x = 10,912,314,982.86 - Step 5: Solve for x
x = 10,912,314,982.86/136,471.32 - Step 6: Final answer
x = 79,960.50
Related Problems
Find fourth proportional to 68,235.66, 102,353.49 and 26,653.50
Half scale
Find fourth proportional to 272,942.64, 409,413.96 and 106,614
Double scale
Find fourth proportional to 136,472.32, 204,708.48 and 53,308
Similar ratio
Find fourth proportional to 204,706.98, 307,060.47 and 79,960.50
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.