KöMaL 2021 B5198

I have a tortoise, a cat and a dog. If the cat is standing on the floor and I place the tortoise on the table, the head of the tortoise will be 70 cm above the head of the cat. If the dog is standing on the floor and I place the cat on the table, the head of the cat will be 80 cm above the head of the dog. Finally, if the tortoise is standing on the floor and I place the dog on the table, the head of the dog will be 120 cm above the head of the tortoise. How tall is the table?