Te recomiendo hacer esto:
Cita: .linea{width:16,6%; text-align:right;}
<table width="100%" border="1">
<tr>
<td class="linea">4</td>
<td class="linea">4</td>
<td class="linea">4</td>
<td class="linea">4</td>
<td class="linea">4</td>
<td class="linea">4</td>
</tr>
</table>
