Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_31 (population_density__per_km²_ VARCHAR, gdp__ppp__$m_usd VARCHAR)
### Question:
How much is the population density with a GDP at $188,112?
### Answer:
SELECT population_density__per_km²_ FROM table_name_31 WHERE gdp__ppp__$m_usd = "$188,112"