a/3=b/5=c/12=kc/4=d/6=e/9 (1)(a+b+c+d+e)/5=100a=3kb=5kc=12kdin (1) rezulta 12k/4=3k=d/6=e/9deci d=18k si e=27ka+b+c+d+e=3k+5k+12k+18k+27k=65k65k/5=10013k=100k=100/13a=3*100/13=300/13b=5*100/13=500/13c=12*100/13=1200/13d=18*100/13=1800/13e=27*100/13=2700/13
