"propose solutions to" is correct and usable in written English.
You can use it whenever you need to suggest a potential answer to a problem or situation. For example, "The team proposed several solutions to the problem of increasing diversity in the workplace."
Parliament can veto government actions, but has few powers to propose solutions to problems.
An official commission was set up last year to propose solutions to the conflict.
As an artist, Mr. Othoniel said, "I had to propose solutions, to propose an exit door.
Increasingly, she is being asked to propose solutions to her country's woes rather than merely lament them.
If you could propose solutions to alleviate the violence and unrest in the North Caucasus, what would they be?
"A government that was not directly elected by the people will not have the legitimacy to propose solutions to our crises," Rousseff's defense read.
3. Assume the role of advisors representing special interest groups in Louisiana in order to propose solutions to the marshland issue.
The victory of the conservatives is so likely that their leader, Mariano Rajoy, does not even bother to propose solutions to his country's plight.
By inserting herself into politics, Ms. Aung San Suu Kyi is being asked to propose solutions to her country's woes rather than merely lament them.
Using portable terminals and television monitors, students propose solutions to economic problems and compare the predictions they yield with data taken from the model.
Raising issues is vitally important, especially when backed by academic research, but at some point we need to propose solutions to these issues that go beyond asking for attention, money and resources.
