That much propane would form 130 kg of carbon dioxide.
Start by writing the balanced chemcial equation for the combustion of propane,
Notice that you have a
Assuming that the oxygen is in excess, you can determine how many moles of propane react by using propane's molar mass
This means that the reaction will produce
To determine the mass of the produced carbon dioxide, use carbon dioxide's molar mass
Rounded to two sig figs, the number of sig figs you gave for the mass of propane, and expressed in kilograms, the answer will be