Provisional money manager who makes risk

investment from pool of equity capital to obtain

high rate of return on investment

The answer is Venture capitalist.

Explanation:

The Venture Capitalist is the provisional manager who makes risk investment from pool of equity capital to obtain high rate of return on investment.

Venture capital funds invest in early stage companies in exchange for equity or an ownership stake in those companies.

Venture capitalists provide the financing interest of generating a return through an exit event such as company selling shares to public for the first time in an public offering.

The venture capitalists get significant control over company decisions. in addition to a significant portion of the companies ownership.