(a,b,c)d.p.(5,6,10)=>a/5=b/6=c/10 (amplificam cu 3 la numitor)
(c,d,e)d.p(3,8,12)=>c/3=d/8=e/12 (amplificam cu 10 la numitor)
a/15=b/18=c/30=d/80=e/120=k=>a=15k , b=18k,c=30k,d=80k,e=120k
a+b+c+d+e=200
15k+18k+30k+80k+120k=200
263k=200=>k=0,76
a=0,76*15=11,4
b=13,68
c=22.8
d=60,8
e=91.2