Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_87 ( matches INTEGER, s_rate VARCHAR, balls VARCHAR, average VARCHAR )

### Question ###
How many Matches have Balls smaller than 224, and an Average larger than 38.25, and an S/Rate larger than 139.09?

### Accurate SQL ###

SELECT SUM(matches) FROM table_name_87 WHERE balls < 224 AND average > 38.25 AND s_rate > 139.09