function quickSort(numbers, target, partial) {
  var sum, remaining;
  var partial = partial || [];

  // sum partial
  sum = partial.reduce(function (a, b) {
    return a + b;
  }, 0);

  // check if the sum partial equals the target
  if (sum === target) {
    console.log("%s=%s", partial.join("+"), target + ', Sum: ' + sum + ', Target: ' + target + ', Partial: ' + partial + ', Remaining: ' + numbers);
    return;
  } else if (sum > target) {
    return // if we're past the target, there is no reason to continue
  }

  for (var i = 0; i < numbers.length; i++) {
    number = numbers[i];
    remaining = numbers.slice(i + 1);
    quickSort(remaining, target, partial.concat([number]));
  }
}

// Examples
quickSort([100, 50, 20, 10, 5, 1], 176);
quickSort([3, 9, 8, 4, 5, 7, 10], 15);