Before adoption of a resolution submitting to a vote a question proposed by the initiatory petition of electors, the county board of supervisors shall request the county tax allocation board to submit to the county board of supervisors the separate tax limitations for the county and the intermediate school districts and townships in the county, aggregating not less than the same number of mills as in the electors’ petition that the majority of the members of the allocation board considers calculated to provide for the financial needs of the local units.