I am creating many variables that end with an incrementing number,

$var0 = "foo"
$var1 = "bar"
$var2 = "ack"
$var3 = "influenza"      # ran out of fillers

I want to check each of these variables for the one containing "ack". My thinking is to use a for, increment $i, and use $i at the end of each variable name.

for($i=0;$i -le 3;$i++) {
    if((Get-Variable -Name "var$i" -ValueOnly) -eq "ack") {
        "result at var$i"
    }
    else {
        $i
    }
}

Is there a more elegant way than Get-Variable to use $i as part of a variable name? Or is the point to use an array in this scenario?