Answer: 
When a truck is loaded to 45% of capacity, there are 108 cases on the truck and the 48 cases make the truck to be a full load. 
Solution: 
Given Data: Truck loaded = 45% of capacity 
45% can be written as 

Number of cases in truck = 108 cases. 
We need to find how many number of cases will be on a full load. 
Number of cases will be on a full load = truck loaded capacity × Number of cases in truck 
Substitute the given values in the above formulae 
Number of cases will be on a full load = 0.45 × 108 = 48.6 
48 cases make the truck to be a full load.